diff --git a/Makefile b/Makefile
index e724055..01b0d84 100644
--- a/Makefile
+++ b/Makefile
@@ -51,6 +51,7 @@ gerber:
 	zip -r $(F_ZIP) $@/
 
 stencil: gerber
+	rm -f $(F_STENCIL)
 	zip $(F_STENCIL) -xi gerber/WarpSE-F_Paste.gtp
 
 Documentation: