diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index 640da6aa6fd..e3996ee8679 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -27,7 +27,7 @@
 #define PY_RELEASE_SERIAL       1
 
 /* Version as a string */
-#define PY_VERSION              "3.15.0a1"
+#define PY_VERSION              "3.15.0a1+"
 /*--end constants--*/