diff --git a/dtool/src/parser-inc/hex.h b/dtool/src/parser-inc/hex.h
new file mode 100644
index 0000000000..080a2731ca
--- /dev/null
+++ b/dtool/src/parser-inc/hex.h
@@ -0,0 +1,14 @@
+// Filename: hex.h
+// Created by:  drose (17Nov00)
+// 
+////////////////////////////////////////////////////////////////////
+
+// This file, and all the other hex in this directory, aren't
+// intended to be compiled--they're just parsed by CPPParser (and
+// interrogate) in lieu of the actual system headers, to generate the
+// interrogate database.
+
+#ifndef HEX_H
+#define HEX_H
+
+#endif