diff --git a/mac.h b/mac.h
new file mode 100644
index 00000000..ba0aaed7
--- /dev/null
+++ b/mac.h
@@ -0,0 +1,11 @@
+/*
+ * mac.h -- macintosh-specific declarations
+ */
+
+#ifndef _PUTTY_MAC_H
+#define _PUTTY_MAC_H
+
+extern long mac_qdversion;
+extern void mac_newsession(void);
+
+#endif