diff --git a/extras/cppcheck/check_file.sh b/extras/cppcheck/check_file.sh
index a560cd33..45c32744 100755
--- a/extras/cppcheck/check_file.sh
+++ b/extras/cppcheck/check_file.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if [[ $@ -lt 1 ]]; then
+if [[ $# -lt 1 ]]; then
     echo "Usage: $0 <path to check>"
     exit 1
 fi