diff --git a/Makefile b/Makefile
index f4b76b0..c2d06f6 100644
--- a/Makefile
+++ b/Makefile
@@ -21,6 +21,6 @@ deinstall:
 	rm -rf $(SHAREDIR)
 
 shellcheck:
-	shellcheck bin/portzap
+	shellcheck bin/*
 	shellcheck libexec/portzap/utils/*
 	shellcheck libexec/portzap/commands/*
diff --git a/bin/setup-portzap b/bin/setup-portzap
index f4189a8..fcc08ba 100755
--- a/bin/setup-portzap
+++ b/bin/setup-portzap
@@ -3,7 +3,7 @@ set -e
 
 ##
 # variables
-localbase="${LOCALBASE:-$(realpath $(dirname $0)/..)}"
+localbase=${LOCALBASE:-$(realpath "$(dirname "$0")"/..)}
 libexec="${localbase}"/libexec/portzap
 conf=$(cat "${localbase}"/share/portzap/doas.conf)
 doas="${localbase}"/etc/doas.conf