diff --git a/CHANGES b/CHANGES
index 52dcfe157..a64f20a8e 100644
--- a/CHANGES
+++ b/CHANGES
@@ -55,6 +55,7 @@ Bugfixes:
  - GBA Audio: Fix 8-bit writes to audio channel 3 frequency
  - ARM7: ARMHotplugDetach should call deinit
  - Qt: Fix window being too tall after exiting fullscreen
+ - Qt: Fix a missing va_end call in the log handler lambda within the GameController constructor
 Misc:
  - Qt: Handle saving input settings better
  - Debugger: Free watchpoints in addition to breakpoints
diff --git a/src/platform/qt/GameController.cpp b/src/platform/qt/GameController.cpp
index c7fa7c57c..aab0c873c 100644
--- a/src/platform/qt/GameController.cpp
+++ b/src/platform/qt/GameController.cpp
@@ -121,6 +121,7 @@ GameController::GameController(QObject* parent)
 			va_list argc;
 			va_copy(argc, args);
 			int immediate = va_arg(argc, int);
+			va_end(argc);
 			controller->unimplementedBiosCall(immediate);
 		}
 		if (level == GBA_LOG_FATAL) {