1 files changed, 2 insertions, 0 deletions
diff --git a/OpenAL32/event.c b/OpenAL32/event.c
index 333b7613..6fd2e96f 100644
--- a/OpenAL32/event.c
+++ b/OpenAL32/event.c
@@ -134,10 +134,12 @@ AL_API void AL_APIENTRY alEventCallbackSOFT(ALEVENTPROCSOFT callback, void *user
     context = GetContextRef();
     if(!context) return;
 
+    almtx_lock(&context->PropLock);
     almtx_lock(&context->EventCbLock);
     context->EventCb = callback;
     context->EventParam = userParam;
     almtx_unlock(&context->EventCbLock);
+    almtx_unlock(&context->PropLock);
 
     ALCcontext_DecRef(context);
 }