diff --git a/clientgui/stdwx.h b/clientgui/stdwx.h
index 4b11c81f3c..209bf45c92 100644
--- a/clientgui/stdwx.h
+++ b/clientgui/stdwx.h
@@ -131,6 +131,7 @@
 
 // Standard Libraries
 //
+#include <malloc.h>
 
 // C headers
 #include <cassert>