diff --git a/core/src/main/java/com/google/errorprone/scanner/BuiltInCheckerSuppliers.java b/core/src/main/java/com/google/errorprone/scanner/BuiltInCheckerSuppliers.java
index 311af635051..c29affc80df 100644
--- a/core/src/main/java/com/google/errorprone/scanner/BuiltInCheckerSuppliers.java
+++ b/core/src/main/java/com/google/errorprone/scanner/BuiltInCheckerSuppliers.java
@@ -585,6 +585,7 @@
 import com.google.errorprone.bugpatterns.threadsafety.StaticGuardedByInstance;
 import com.google.errorprone.bugpatterns.threadsafety.SynchronizeOnNonFinalField;
 import com.google.errorprone.bugpatterns.threadsafety.ThreadPriorityCheck;
+import com.google.errorprone.bugpatterns.threadsafety.ThreadSafeChecker;
 import com.google.errorprone.bugpatterns.time.DateChecker;
 import com.google.errorprone.bugpatterns.time.DurationFrom;
 import com.google.errorprone.bugpatterns.time.DurationGetTemporalUnit;
@@ -1258,6 +1259,7 @@ public static ScannerSupplier warningChecks() {
           SystemExitOutsideMain.class,
           SystemOut.class,
           TestExceptionChecker.class,
+          ThreadSafeChecker.class,
           ThrowSpecificExceptions.class,
           ThrowsUncheckedException.class,
           TimeUnitMismatch.class,