diff --git a/dot_config/zsh/functions.zsh b/dot_config/zsh/functions.zsh
index 44bd450..2a0e05d 100644
--- a/dot_config/zsh/functions.zsh
+++ b/dot_config/zsh/functions.zsh
@@ -11,7 +11,9 @@ pomerge() {
         cp -v "$new_po" "$app_po"
         return
     fi
-    msgcat --use-first --no-location --no-wrap "$app_po" "$new_po" 
+    tmp="$(mktemp)"
+    msgcat --use-first --no-location --no-wrap "$app_po" "$new_po" > "$tmp"
+    mv "$tmp" "$app_po"
 }
 
 pocompile() {