diff --git a/sch2fig/main.c b/sch2fig/main.c
index db59f96..6ffee2a 100644
--- a/sch2fig/main.c
+++ b/sch2fig/main.c
@@ -134,4 +134,6 @@ found:
 		sch_render(sch_ctx.sheets);
 	}
 	gfx_end();
+
+	return 0;
 }