diff --git a/src/common/windows/com.c b/src/common/windows/com.c
index 3f2fa3987..a400ca9c6 100644
--- a/src/common/windows/com.c
+++ b/src/common/windows/com.c
@@ -1,5 +1,7 @@
 #include "com.h"
 
+#include <stdlib.h>
+
 #if FF_HAVE_WINRT
     #include <roapi.h>