diff --git a/Documentation/sphinx/parallel-wrapper.sh b/Documentation/sphinx/parallel-wrapper.sh
index 7daf5133bdd3..e54c44ce117d 100644
--- a/Documentation/sphinx/parallel-wrapper.sh
+++ b/Documentation/sphinx/parallel-wrapper.sh
@@ -30,4 +30,4 @@ if [ -n "$parallel" ] ; then
 	parallel="-j$parallel"
 fi
 
-exec "$sphinx" "$parallel" "$@"
+exec "$sphinx" $parallel "$@"