diff --git a/Makefile b/Makefile
index 98bb1d2..bb85012 100644
--- a/Makefile
+++ b/Makefile
@@ -50,7 +50,7 @@ push_translations:
 
 # Pulls translations from Transifex.
 pull_translations:
-	tx pull -f --mode reviewed --language=$(transifex_langs)
+	tx pull -f --mode reviewed --languages=$(transifex_langs)
 
 # This target is used by Travis.
 validate-no-uncommitted-package-lock-changes: