diff --git a/panda/src/pipeline/conditionVarWin32Impl.h b/panda/src/pipeline/conditionVarWin32Impl.h
index fe0fa13627..66a39a4e20 100644
--- a/panda/src/pipeline/conditionVarWin32Impl.h
+++ b/panda/src/pipeline/conditionVarWin32Impl.h
@@ -27,8 +27,6 @@
 #include "mutexWin32Impl.h"
 #include "pnotify.h"
 
-#include <prcvar.h>
-
 class MutexWin32Impl;
 
 ////////////////////////////////////////////////////////////////////