diff --git a/src/frontend/qt_sdl/main.cpp b/src/frontend/qt_sdl/main.cpp
index 9d660d99..a8add8ee 100644
--- a/src/frontend/qt_sdl/main.cpp
+++ b/src/frontend/qt_sdl/main.cpp
@@ -666,7 +666,7 @@ void EmuThread::run()
             if (EmuRunning == 0) break;
 
             winUpdateCount++;
-            if (winUpdateCount >= winUpdateFreq)
+            if (winUpdateCount >= winUpdateFreq && !oglContext)
             {
                 emit windowUpdate();
                 winUpdateCount = 0;