diff --git a/src/plugins/debugger/debuggeruiswitcher.h b/src/plugins/debugger/debuggeruiswitcher.h
index 0a206bc86b9..3fbd69b4b6b 100644
--- a/src/plugins/debugger/debuggeruiswitcher.h
+++ b/src/plugins/debugger/debuggeruiswitcher.h
@@ -86,7 +86,7 @@ public:
     void addMenuAction(Core::Command *command, const DebuggerLanguage &language,
                        const QString &group = QString());
 
-    // all supported languagess
+    // all supported languages
     DebuggerLanguages supportedLanguages() const;
 
     // active languages to be debugged.