diff --git a/start b/start
index cba9809..4bb3a40 100755
--- a/start
+++ b/start
@@ -4,11 +4,16 @@
 #
 set -euo pipefail
 
+# If TORRC_PATH is set in the environment, use the torrc file
+# specified by that path instead of the default config.
 TORRC_PATH=${TORRC_PATH:-""}
-[[ "$TORRC_PATH" ]] && echo "$(date) [ $(basename $0) ] Using torrc file from '$TORRC_PATH'.."
-[[ -e "$TORRC_PATH" ]] || {
-  echo "$(date) [ $(basename $0) ] FATAL: No such file '$TORRC_PATH'." >&1
-  exit 1
-}
-cp -v "$TORRC_PATH" /usr/local/bin/Browser/TorBrowser/Data/Tor/torrc
+if [[ "$TORRC_PATH" ]]; then
+  echo "$(date) [ $(basename $0) ] Using torrc file from '$TORRC_PATH'.."
+  if [[ ! -e "$TORRC_PATH" ]]; then
+    echo "$(date) [ $(basename $0) ] FATAL: No such file '$TORRC_PATH'." >&1
+    exit 1
+  fi
+  cp -v "$TORRC_PATH" /usr/local/bin/Browser/TorBrowser/Data/Tor/torrc
+fi
+
 start-tor-browser "$@"