diff --git a/Makefile b/Makefile
index 2f4889c..4d4416d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 locales:
-	json2po -P -i locale/en.json -t locale/en.json -o po/framadate.pot
+	scripts/locales.sh
 
 push-locales: locales
 	zanata-cli -q -B push
diff --git a/scripts/locales.sh b/scripts/locales.sh
new file mode 100755
index 0000000..47f00c9
--- /dev/null
+++ b/scripts/locales.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+python -m json.tool < locale/en.json
+if [[ $? == 0 ]];
+then
+    json2po -P -i locale/en.json -t locale/en.json -o po/framadate.pot
+else
+    echo "Can't convert json files to po, the json file is incorrect"
+    exit 1
+fi