diff --git a/rclrs/build.rs b/rclrs/build.rs
index e6aa8ee05..9da8afa7f 100644
--- a/rclrs/build.rs
+++ b/rclrs/build.rs
@@ -25,10 +25,10 @@ fn main() {
             "ROS_DISTRO environment variable not set - please source ROS 2 installation first.";
         cfg_if::cfg_if! {
             if #[cfg(feature="generate_docs")] {
-                println!(error_msg);
+                println!("{}", error_msg);
                 return;
             } else {
-                panic!(error_msg);
+                panic!("{}", error_msg);
             }
         }
     };
diff --git a/rclrs/src/rcl_bindings.rs b/rclrs/src/rcl_bindings.rs
index f8da919f4..02baa69e2 100644
--- a/rclrs/src/rcl_bindings.rs
+++ b/rclrs/src/rcl_bindings.rs
@@ -138,7 +138,7 @@ cfg_if::cfg_if! {
         // Added to avoid clippy complaining about u128 types not being FFI safe
         // Caused by https://github.com/ros2/ros2/issues/1374 in iron and newer
         // See https://github.com/ros2-rust/ros2_rust/issues/320
-        #[allow(improper_ctypes)]
+        #![allow(improper_ctypes)]
         #[allow(improper_ctypes_definitions)]
         #[allow(clippy::all)]
         #[allow(missing_docs)]