diff --git a/data/ui/application.ui b/data/ui/application.ui
index d754c6d..a72c0d2 100644
--- a/data/ui/application.ui
+++ b/data/ui/application.ui
@@ -141,6 +141,8 @@
 												<property name="maximum-size">400</property>
 												<child>
 													<object class="GtkProgressBar" id="progressbar">
+														<!-- translators: Text on top of the progressbar when waiting for a different window to finish first -->
+														<property name="text" translatable="yes">Pending</property>
 														<property name="show-text">1</property>
 														<property name="valign">center</property>
 														<property name="hexpand">1</property>
diff --git a/src/collision/functions/checksum.cr b/src/collision/functions/checksum.cr
index d3af05a..37e1050 100644
--- a/src/collision/functions/checksum.cr
+++ b/src/collision/functions/checksum.cr
@@ -44,8 +44,11 @@ module Collision
 
     def generate(filename : String, progressbar : Gtk::ProgressBar? = nil, &block : Hash(Symbol, String) ->)
       hash_amount = Collision::HASH_FUNCTIONS.size
-      progressbar.fraction = 0.0
-      progressbar.text = sprintf(Gettext.gettext("%d of %d hashes calculated"), {0, hash_amount})
+
+      unless progressbar.nil?
+        progressbar.fraction = 0.0
+        progressbar.text = sprintf(Gettext.gettext("%d of %d hashes calculated"), {0, hash_amount})
+      end
 
       atomic = Atomic.new(0)
       step = 1/hash_amount
diff --git a/src/collision/window.cr b/src/collision/window.cr
index 0b7762f..04bae09 100644
--- a/src/collision/window.cr
+++ b/src/collision/window.cr
@@ -138,6 +138,7 @@ module Collision
     end
 
     def loading
+      @progressbar.text = Gettext.gettext("Pending")
       @progressbar.fraction = 0.0
       @mainStack.visible_child_name = "spinner"
       @headerbarStack.visible_child_name = "empty"