diff --git a/rmw_zenoh_cpp/src/detail/rmw_publisher_data.hpp b/rmw_zenoh_cpp/src/detail/rmw_publisher_data.hpp
index 29db7d63..eca222b7 100644
--- a/rmw_zenoh_cpp/src/detail/rmw_publisher_data.hpp
+++ b/rmw_zenoh_cpp/src/detail/rmw_publisher_data.hpp
@@ -52,7 +52,7 @@ class PublisherData final
   rmw_ret_t publish(
     const void * ros_message
 #ifdef RMW_ZENOH_BUILD_WITH_SHARED_MEMORY
-  , std::optional<ShmContext> & shm
+    , std::optional<ShmContext> & shm
 #endif
   );
 
@@ -60,7 +60,7 @@ class PublisherData final
   rmw_ret_t publish_serialized_message(
     const rmw_serialized_message_t * serialized_message
 #ifdef RMW_ZENOH_BUILD_WITH_SHARED_MEMORY
-  , std::optional<ShmContext> & shm
+    , std::optional<ShmContext> & shm
 #endif
   );
 
diff --git a/rmw_zenoh_cpp/src/detail/rmw_subscription_data.hpp b/rmw_zenoh_cpp/src/detail/rmw_subscription_data.hpp
index 5abca54c..4f864994 100644
--- a/rmw_zenoh_cpp/src/detail/rmw_subscription_data.hpp
+++ b/rmw_zenoh_cpp/src/detail/rmw_subscription_data.hpp
@@ -77,7 +77,7 @@ class SubscriptionData final : public std::enable_shared_from_this<SubscriptionD
   rmw_ret_t publish(
     const void * ros_message
 #ifdef RMW_ZENOH_BUILD_WITH_SHARED_MEMORY
-  , std::optional<ShmContext> & shm
+    , std::optional<ShmContext> & shm
 #endif
   );