diff --git a/modules/pymol/Qt/__init__.py b/modules/pymol/Qt/__init__.py
index 22191d068..d1404c913 100644
--- a/modules/pymol/Qt/__init__.py
+++ b/modules/pymol/Qt/__init__.py
@@ -8,7 +8,7 @@
 http://pyqt.sourceforge.net/Docs/PyQt5/pyqt4_differences.html
 """
 
-DEBUG = True  # Turn off for open-source
+DEBUG = False
 
 PYQT_NAME = None
 QtWidgets = None