diff --git a/gitprompt.sh b/gitprompt.sh
index 17bb5da..b0b355e 100644
--- a/gitprompt.sh
+++ b/gitprompt.sh
@@ -110,10 +110,8 @@ function checkUpstream() {
   if [[ ! -e "${FETCH_HEAD}"  ||  -e `find "${FETCH_HEAD}" -mmin +${GIT_PROMPT_FETCH_TIMEOUT}` ]]
   then
     if [[ -n $(git remote show) ]]; then
-      (
-        async_run "git fetch --quiet"
-        disown -h
-      )
+      async_run "git fetch --quiet"
+      disown -h
     fi
   fi
 }