diff --git a/VERSION b/VERSION
index f5b26962..b2c7c07b 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.3.126
+8.3.127
diff --git a/drc/DRCsubcell.c b/drc/DRCsubcell.c
index 053d77e6..d7b9d3af 100644
--- a/drc/DRCsubcell.c
+++ b/drc/DRCsubcell.c
@@ -647,6 +647,7 @@ void
 DRCOffGridError(rect)
     Rect      *rect;            /* Area of error */
 {
+    if (drcSubFunc == NULL) return;
     (*drcSubFunc)(DRCErrorDef, rect, &drcOffGridCookie, drcSubClientData);
 }