diff --git a/src/debugger/gui/DataGridWidget.cxx b/src/debugger/gui/DataGridWidget.cxx
index 14b626c9a..d90af4ff1 100644
--- a/src/debugger/gui/DataGridWidget.cxx
+++ b/src/debugger/gui/DataGridWidget.cxx
@@ -337,7 +337,7 @@ bool DataGridWidget::handleKeyDown(StellaKey key, StellaMod mod)
 {
   // Ignore all mod keys
   if(StellaModTest::isControl(mod) || StellaModTest::isAlt(mod))
-    return true;
+    return false;
 
   bool handled = true;
   bool dirty = false;
diff --git a/src/debugger/gui/RomListWidget.cxx b/src/debugger/gui/RomListWidget.cxx
index 7ca7a53ad..07ed44e9e 100644
--- a/src/debugger/gui/RomListWidget.cxx
+++ b/src/debugger/gui/RomListWidget.cxx
@@ -304,7 +304,7 @@ bool RomListWidget::handleKeyDown(StellaKey key, StellaMod mod)
 {
   // Ignore all Alt-mod keys
   if(StellaModTest::isAlt(mod))
-    return true;
+    return false;
 
   bool handled = true;
   int oldSelectedItem = _selectedItem;
diff --git a/src/debugger/gui/ToggleWidget.cxx b/src/debugger/gui/ToggleWidget.cxx
index 468c89784..12648bc00 100644
--- a/src/debugger/gui/ToggleWidget.cxx
+++ b/src/debugger/gui/ToggleWidget.cxx
@@ -92,7 +92,7 @@ bool ToggleWidget::handleKeyDown(StellaKey key, StellaMod mod)
 {
   // Ignore all mod keys
   if(StellaModTest::isControl(mod) || StellaModTest::isAlt(mod))
-    return true;
+    return false;
 
   bool handled = true;
   bool dirty = false, toggle = false;
diff --git a/src/gui/EditableWidget.cxx b/src/gui/EditableWidget.cxx
index 3c4175bf9..7732694c4 100644
--- a/src/gui/EditableWidget.cxx
+++ b/src/gui/EditableWidget.cxx
@@ -277,7 +277,7 @@ bool EditableWidget::handleText(char text)
 bool EditableWidget::handleKeyDown(StellaKey key, StellaMod mod)
 {
   if(!_editable)
-    return true;
+    return false;
 
   bool handled = true;
   Event::Type event = instance().eventHandler().eventForKey(EventMode::kEditMode, key, mod);
diff --git a/src/gui/ListWidget.cxx b/src/gui/ListWidget.cxx
index 6d46183c5..335d2f83d 100644
--- a/src/gui/ListWidget.cxx
+++ b/src/gui/ListWidget.cxx
@@ -280,7 +280,7 @@ bool ListWidget::handleKeyDown(StellaKey key, StellaMod mod)
 {
   // Ignore all Alt-mod keys
   if(StellaModTest::isAlt(mod))
-    return true;
+    return false;
 
   bool handled = true;
   if (!_editMode)