diff --git a/src/Compat/gui.jl b/src/Compat/gui.jl
index ad7b1687..7fa734f2 100644
--- a/src/Compat/gui.jl
+++ b/src/Compat/gui.jl
@@ -159,7 +159,7 @@ function init_gui()
 
         # add a hook to automatically call fix_qt_plugin_path()
         fixqthook =
-            Py(() -> (Core.CONFIG.auto_fix_qt_plugin_path && fix_qt_plugin_path(); nothing))
+            Py(() -> (PythonCall.Core.CONFIG.auto_fix_qt_plugin_path && fix_qt_plugin_path(); nothing))
         pymodulehooks.add_hook("PyQt4", fixqthook)
         pymodulehooks.add_hook("PyQt5", fixqthook)
         pymodulehooks.add_hook("PySide", fixqthook)