diff --git a/po/.gitattributes b/po/.gitattributes
new file mode 100644
index 000000000..17b178c0e
--- /dev/null
+++ b/po/.gitattributes
@@ -0,0 +1,7 @@
+# You should add
+#[filter "cleanpo"]
+#        clean = "awk '/^\"POT-Creation-Date:/&&!s{s=1;next};!/^#: /{print}'"
+# to your config file.
+
+/??.po     filter=cleanpo
+/??_??.po  filter=cleanpo