diff --git a/px4_ros2_cpp/test/integration/global_navigation.cpp b/px4_ros2_cpp/test/integration/global_navigation.cpp
index f64e17b..c057ec8 100644
--- a/px4_ros2_cpp/test/integration/global_navigation.cpp
+++ b/px4_ros2_cpp/test/integration/global_navigation.cpp
@@ -54,7 +54,7 @@ class GlobalPositionInterfaceTest : public BaseTest
 
   void waitForMeasurementUpdate(
     std::unique_ptr<GlobalPositionMeasurement> measurement,
-    const std::function<bool(const EstimatorStatusFlags::UniquePtr &)>& is_fused_getter
+    const std::function<bool(const EstimatorStatusFlags::UniquePtr &)> & is_fused_getter
   )
   {
     auto start_time = std::chrono::steady_clock::now();
diff --git a/px4_ros2_cpp/test/integration/local_navigation.cpp b/px4_ros2_cpp/test/integration/local_navigation.cpp
index e9c8122..4759ee1 100644
--- a/px4_ros2_cpp/test/integration/local_navigation.cpp
+++ b/px4_ros2_cpp/test/integration/local_navigation.cpp
@@ -61,7 +61,7 @@ class LocalPositionInterfaceTest : public BaseTest
 
   void waitForMeasurementUpdate(
     std::unique_ptr<LocalPositionMeasurement> measurement,
-    const std::function<bool(const EstimatorStatusFlags::UniquePtr &)>& is_fused_getter
+    const std::function<bool(const EstimatorStatusFlags::UniquePtr &)> & is_fused_getter
   )
   {
     auto start_time = std::chrono::steady_clock::now();