diff --git a/scripts/run_cargo_tests.sh b/scripts/run_cargo_tests.sh
index 8a7a41aaf..140b5da08 100755
--- a/scripts/run_cargo_tests.sh
+++ b/scripts/run_cargo_tests.sh
@@ -21,5 +21,5 @@ cargo rustc --bin cloud-hypervisor --no-default-features --features "pci"  -- -D
 cargo rustc --bin vhost_user_net --no-default-features --features "pci"  -- -D warnings
 cargo rustc --bin cloud-hypervisor --no-default-features --features "mmio"  -- -D warnings
 cargo rustc --bin vhost_user_net --no-default-features --features "mmio"  -- -D warnings
-find . -name "*.rs" | xargs rustfmt --check
+find . \( -name "*.rs" ! -wholename "*/out/*.rs" \) | xargs rustfmt --check
 cargo build --release