diff --git a/scripts/_common.sh b/scripts/_common.sh
index 177fb30413..4439464830 100755
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -47,7 +47,7 @@ if ! output=$(
   exit 1
 fi
 
-if [ ! -f submodules/stack-graphs/stack-graphs/Cargo.toml ]; then
+if [[ ! -f submodules/stack-graphs/stack-graphs/Cargo.toml ]]; then
   # We declare stack-graphs as our dependency in root's Cargo.toml so we need to
   # check it out in order to run `cargo build`
   git submodule update --init --progress