1 files changed, 1 insertions, 1 deletions
diff --git a/OpenAL32/Include/alMain.h b/OpenAL32/Include/alMain.h
index 6f9bedce..b0a33114 100644
--- a/OpenAL32/Include/alMain.h
+++ b/OpenAL32/Include/alMain.h
@@ -559,7 +559,7 @@ struct ALCcontext_struct
     ALfloat     DopplerFactor;
     ALfloat     DopplerVelocity;
     ALfloat     flSpeedOfSound;
-    ALenum      DeferUpdates;
+    volatile ALenum DeferUpdates;
 
     struct ALsource **ActiveSources;
     ALsizei           ActiveSourceCount;