diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index 4cacf3208a3..db8388d960a 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -23,7 +23,7 @@
 #define PY_MINOR_VERSION	5
 #define PY_MICRO_VERSION	0
 #define PY_RELEASE_LEVEL	PY_RELEASE_LEVEL_GAMMA
-#define PY_RELEASE_SERIAL	3
+#define PY_RELEASE_SERIAL	1
 
 /* Version as a string */
 #define PY_VERSION		"2.5c1"