diff --git a/scripts/rust_pre_commit.sh b/scripts/rust_pre_commit.sh
index 2931d5d95..dad8ef50c 100755
--- a/scripts/rust_pre_commit.sh
+++ b/scripts/rust_pre_commit.sh
@@ -1,20 +1,21 @@
 #!/usr/bin/env bash
 
 set -e
 
-source $HOME/.cargo/env 
+# shellcheck source=/dev/null
+source "$HOME"/.cargo/env 
 
 PATHS="services/commtest"
 
 cargo > /dev/null
 
 for PATH in $PATHS; do
-  pushd $PATH
+  pushd "$PATH"
   echo "formatting $PATH..."
   cargo fmt --all -- --check
   echo "checking $PATH..."
   cargo check
   popd # $PATH
 done
 
 echo "done formatting"