diff --git a/scripts/run-scan.sh b/scripts/run-scan.sh
index 49e9595..64112b2 100755
--- a/scripts/run-scan.sh
+++ b/scripts/run-scan.sh
@@ -25,7 +25,7 @@ BUILD_CMD="$2"
 test -n "$BUILD_CMD" || die "no BUILD_CMD given"
 
 FILTER_CMD="$3"
-test -n "$FILTER_CMD" || FILTER_CMD=cat
+test -n "$FILTER_CMD" || FILTER_CMD="cat"
 
 BASE_ERR="$4"
 if test -n "$BASE_ERR"; then
diff --git a/scripts/run-shellcheck.sh b/scripts/run-shellcheck.sh
index cd171c0..0a594e6 100755
--- a/scripts/run-shellcheck.sh
+++ b/scripts/run-shellcheck.sh
@@ -1,4 +1,6 @@
 #!/bin/bash
+# shellcheck disable=SC2319
+
 export LC_ALL="C"
 
 # how many shell scripts we pass to shellcheck at a time