diff --git a/build_tools/cppcheck.sh b/build_tools/cppcheck.sh
index 658f35c4b..fc94a2d79 100755
--- a/build_tools/cppcheck.sh
+++ b/build_tools/cppcheck.sh
@@ -1,3 +1,3 @@
 #!/usr/local/bin/fish
 
-cppcheck --enable=all --std=posix --quiet .
+cppcheck --enable=all --std=posix --quiet ./src/