diff --git a/openlane/Makefile b/openlane/Makefile
index 160c810..2c4dff4 100644
--- a/openlane/Makefile
+++ b/openlane/Makefile
@@ -27,7 +27,8 @@
 	-save_path $$(realpath ..) \
 	-save \
 	-tag $(OPENLANE_RUN_TAG) \
-	-overwrite"
+	-overwrite
+	-ignore_mismatches"
 openlane_cmd_interactive = "flow.tcl -it -file $$(realpath ./$*/interactive.tcl)"
 
 docker_mounts = \