diff --git a/Confuser2.sln b/Confuser2.sln
index 1ca772db..0d898433 100644
--- a/Confuser2.sln
+++ b/Confuser2.sln
@@ -137,6 +137,12 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "389_MixedCultureCasing", "T
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "389_MixedCultureCasing.Test", "Tests\389_MixedCultureCasing.Test\389_MixedCultureCasing.Test.csproj", "{D1CCDA5D-E460-4ACC-B51A-730DE8F0ECF3}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BlockingReferences", "Tests\BlockingReferences\BlockingReferences.csproj", "{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BlockingReferencesHelper", "Tests\BlockingReferencesHelper\BlockingReferencesHelper.csproj", "{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BlockingReferences.Test", "Tests\BlockingReferences.Test\BlockingReferences.Test.csproj", "{4FB03AD0-96FF-4730-801A-4F997795D920}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -866,6 +872,42 @@ Global
 		{D1CCDA5D-E460-4ACC-B51A-730DE8F0ECF3}.Release|x64.Build.0 = Release|Any CPU
 		{D1CCDA5D-E460-4ACC-B51A-730DE8F0ECF3}.Release|x86.ActiveCfg = Release|Any CPU
 		{D1CCDA5D-E460-4ACC-B51A-730DE8F0ECF3}.Release|x86.Build.0 = Release|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Debug|x64.Build.0 = Debug|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Debug|x86.Build.0 = Debug|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Release|x64.ActiveCfg = Release|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Release|x64.Build.0 = Release|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Release|x86.ActiveCfg = Release|Any CPU
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821}.Release|x86.Build.0 = Release|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Debug|x64.Build.0 = Debug|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Debug|x86.Build.0 = Debug|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Release|x64.ActiveCfg = Release|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Release|x64.Build.0 = Release|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Release|x86.ActiveCfg = Release|Any CPU
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD}.Release|x86.Build.0 = Release|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Debug|x64.Build.0 = Debug|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Debug|x86.Build.0 = Debug|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Release|Any CPU.Build.0 = Release|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Release|x64.ActiveCfg = Release|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Release|x64.Build.0 = Release|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Release|x86.ActiveCfg = Release|Any CPU
+		{4FB03AD0-96FF-4730-801A-4F997795D920}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -923,6 +965,9 @@ Global
 		{5E9715AB-CAF7-4FFF-8E14-A8727891DA93} = {356BDB31-853E-43BB-8F9A-D8AC08F69EBB}
 		{75E5F9A0-8D69-4426-9F16-4A65E941974D} = {356BDB31-853E-43BB-8F9A-D8AC08F69EBB}
 		{D1CCDA5D-E460-4ACC-B51A-730DE8F0ECF3} = {356BDB31-853E-43BB-8F9A-D8AC08F69EBB}
+		{F602DAFE-E8A2-4CB2-AF0E-656CD357D821} = {356BDB31-853E-43BB-8F9A-D8AC08F69EBB}
+		{9EB8DC3B-60DC-451E-8C18-3D7E38D463FD} = {356BDB31-853E-43BB-8F9A-D8AC08F69EBB}
+		{4FB03AD0-96FF-4730-801A-4F997795D920} = {356BDB31-853E-43BB-8F9A-D8AC08F69EBB}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {0D937D9E-E04B-4A68-B639-D4260473A388}
diff --git a/Tests/BlockingReferences.Test/BlockingReferences.Test.csproj b/Tests/BlockingReferences.Test/BlockingReferences.Test.csproj
new file mode 100644
index 00000000..f38282b5
--- /dev/null
+++ b/Tests/BlockingReferences.Test/BlockingReferences.Test.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net461</TargetFramework>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\BlockingReferences\BlockingReferences.csproj" />
+      <ProjectReference Include="..\Confuser.UnitTest\Confuser.UnitTest.csproj" />
+    </ItemGroup>
+</Project>
diff --git a/Tests/BlockingReferences.Test/Program.cs b/Tests/BlockingReferences.Test/Program.cs
new file mode 100644
index 00000000..cfa2a14c
--- /dev/null
+++ b/Tests/BlockingReferences.Test/Program.cs
@@ -0,0 +1,26 @@
+using System.Threading.Tasks;
+using Confuser.Core;
+using Confuser.Core.Project;
+using Confuser.UnitTest;
+using Xunit;
+using Xunit.Abstractions;
+
+namespace BlockingReferences.Test {
+	public class BlockingReferencesTest : TestBase {
+		public BlockingReferencesTest(ITestOutputHelper outputHelper) : base(outputHelper) { }
+
+		[Fact]
+		[Trait("Category", "Protection")]
+		[Trait("Protection", "rename")]
+		[Trait("Issue", "https://github.com/mkaring/ConfuserEx/issues/379")]
+		public async Task BlockingReferences() =>
+			await Run(
+				new [] { "BlockingReferences.exe", "BlockingReferencesHelper.dll" },
+				new [] {
+					"",
+					"Implementation2",
+				},
+				new SettingItem<Protection>("rename") { ["renPublic"] = "true", ["mode"] = "decodable" }
+			);
+	}
+}
diff --git a/Tests/BlockingReferences/BlockingReferences.csproj b/Tests/BlockingReferences/BlockingReferences.csproj
new file mode 100644
index 00000000..af79c190
--- /dev/null
+++ b/Tests/BlockingReferences/BlockingReferences.csproj
@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+      <OutputType>Exe</OutputType>
+      <TargetFramework>net461</TargetFramework>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\BlockingReferencesHelper\BlockingReferencesHelper.csproj" />
+    </ItemGroup>
+
+</Project>
diff --git a/Tests/BlockingReferences/Program.cs b/Tests/BlockingReferences/Program.cs
new file mode 100644
index 00000000..51585929
--- /dev/null
+++ b/Tests/BlockingReferences/Program.cs
@@ -0,0 +1,26 @@
+using System;
+using BlockingReferencesHelper;
+
+namespace BlockingReferences {
+	public interface IBaseInterface {
+		string Method();
+	}
+
+	public class Implementation1 : BaseImplementation<string>, IBaseInterface {
+	}
+
+	public class Implementation2 : BaseImplementation<string>, IBaseInterface {
+		public override string Method() => "Implementation2";
+	}
+
+	public static class Program {
+		public static int Main() {
+			Console.WriteLine("START");
+			Console.WriteLine(new Implementation1().Method());
+			Console.WriteLine(new Implementation2().Method());
+			Console.WriteLine("END");
+
+			return 42;
+		}
+	}
+}
diff --git a/Tests/BlockingReferencesHelper/BaseImplementation.cs b/Tests/BlockingReferencesHelper/BaseImplementation.cs
new file mode 100644
index 00000000..d45d35ba
--- /dev/null
+++ b/Tests/BlockingReferencesHelper/BaseImplementation.cs
@@ -0,0 +1,5 @@
+namespace BlockingReferencesHelper {
+	public class BaseImplementation<T> {
+		public virtual T Method() => default;
+	}
+}
diff --git a/Tests/BlockingReferencesHelper/BlockingReferencesHelper.csproj b/Tests/BlockingReferencesHelper/BlockingReferencesHelper.csproj
new file mode 100644
index 00000000..1827b043
--- /dev/null
+++ b/Tests/BlockingReferencesHelper/BlockingReferencesHelper.csproj
@@ -0,0 +1,7 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net461</TargetFramework>
+    </PropertyGroup>
+
+</Project>