diff --git a/Mac/Include/pythonresources.h b/Mac/Include/pythonresources.h
index 0b74328d020..9bb899833a7 100644
--- a/Mac/Include/pythonresources.h
+++ b/Mac/Include/pythonresources.h
@@ -169,4 +169,6 @@ typedef struct PyMac_PrefRecord {
 /* From macgetpath.c: */
 void PyMac_PreferenceOptions(PyMac_PrefRecord *);
 char * PyMac_GetPythonDir(void);
+/* from macmain.c: */
+extern PyMac_PrefRecord PyMac_options;
 #endif