diff --git a/contrib/generate-ui.sh b/contrib/generate-ui.sh
index 349b6a544..980a87c24 100755
--- a/contrib/generate-ui.sh
+++ b/contrib/generate-ui.sh
@@ -5,6 +5,6 @@ for file in *.ui
 do
     gen_file=ui_`echo $file| cut -d. -f1`.py
     pyside2-uic $file -o $gen_file
-    sed -i 's/raise()/raise_()/g' $gen_file
+    sed -i '' -e 's/raise()/raise_()/g' $gen_file
 done
 popd