diff --git a/scripts/fetchdep.sh b/scripts/fetchdep.sh
index ced41b0..517ed89 100755
--- a/scripts/fetchdep.sh
+++ b/scripts/fetchdep.sh
@@ -17,7 +17,8 @@ clone() {
     if [ -n "$branch" ]
     then
         echo "Trying to use $org/$repo#$branch"
-        git clone https://github.com/$org/$repo.git $repo --branch "$branch" --depth 1 && exit 0
+        # Disable auth prompts: https://serverfault.com/a/665959
+        GIT_TERMINAL_PROMPT=0 git clone https://github.com/$org/$repo.git $repo --branch "$branch" --depth 1 && exit 0
     fi
 }