diff --git a/include/d3d8.h b/include/d3d8.h
index 8b7ea53ee1d..3ca310a676a 100644
--- a/include/d3d8.h
+++ b/include/d3d8.h
@@ -23,9 +23,15 @@
 #define DIRECT3D_VERSION  0x0800
 #endif
 
+#include <stdlib.h>
+
 #define COM_NO_WINDOWS_H
 #include <objbase.h>
 
+#ifndef __WINESRC__
+# include <windows.h>
+#endif
+
 #include <d3d8types.h>
 #include <d3d8caps.h>
 
diff --git a/include/d3d9.h b/include/d3d9.h
index 2575dbeb3a3..c6c300490ed 100644
--- a/include/d3d9.h
+++ b/include/d3d9.h
@@ -24,9 +24,15 @@
 #define DIRECT3D_VERSION  0x0900
 #endif
 
+#include <stdlib.h>
+
 #define COM_NO_WINDOWS_H
 #include <objbase.h>
 
+#ifndef __WINESRC__
+# include <windows.h>
+#endif
+
 #include <d3d9types.h>
 #include <d3d9caps.h>