diff --git a/src/solaris/native/sun/awt/awt_GraphicsEnv.h b/src/solaris/native/sun/awt/awt_GraphicsEnv.h
index 224c55404444c8faf80a8da30a4bd8cba5d80108..330b605143d1d557fb9061b9cefbaba9ce99d2a7 100644
--- a/src/solaris/native/sun/awt/awt_GraphicsEnv.h
+++ b/src/solaris/native/sun/awt/awt_GraphicsEnv.h
@@ -42,6 +42,10 @@
 #include <sys/ipc.h>
 #include <sys/shm.h>
 #include <X11/extensions/XShm.h>
+#ifndef X_ShmAttach
+#include <X11/Xmd.h>
+#include <X11/extensions/shmproto.h>
+#endif
 
 extern int XShmQueryExtension();