diff --git a/cmake/cyclonedds/CMakeLists.txt b/cmake/cyclonedds/CMakeLists.txt
index 58996841a0..070c1c39e3 100644
--- a/cmake/cyclonedds/CMakeLists.txt
+++ b/cmake/cyclonedds/CMakeLists.txt
@@ -70,10 +70,6 @@ function(fetch_and_install name)
     endforeach()
     string( REPLACE ";" " " ADDITIONAL_CMAKE_FLAGS "${ADDITIONAL_CMAKE_FLAGS}")
 
-    if(APPLE)
-        set(ADDITIONAL_CMAKE_FLAGS ${ADDITIONAL_CMAKE_FLAGS} -DCMAKE_CXX_STANDARD=11)
-    endif()
-
     execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" "-DCMAKE_INSTALL_PREFIX=${INSTALL_DIR}" "${ADDITIONAL_CMAKE_FLAGS}" "${SOURCE_DIR}"
         RESULT_VARIABLE result
         WORKING_DIRECTORY ${BUILD_DIR} )
@@ -93,4 +89,9 @@ endfunction()
 
 fetch_and_install(idlpp-cxx)
 fetch_and_install(cyclonedds)
-fetch_and_install(cyclonedds-cxx -DBUILD_TESTING=OFF)
+
+if(APPLE)
+    fetch_and_install(cyclonedds-cxx -DBUILD_TESTING=OFF -DCMAKE_CXX_STANDARD=11)    
+else()
+    fetch_and_install(cyclonedds-cxx -DBUILD_TESTING=OFF)    
+endif()
\ No newline at end of file
diff --git a/iceoryx_binding_c/test/moduletests/test_types.cpp b/iceoryx_binding_c/test/moduletests/test_types.cpp
index 20338c23df..41b561de28 100644
--- a/iceoryx_binding_c/test/moduletests/test_types.cpp
+++ b/iceoryx_binding_c/test/moduletests/test_types.cpp
@@ -31,24 +31,24 @@ using namespace ::testing;
 
 TEST(iox_types_test, WaitSetStorageSizeFits)
 {
-    EXPECT_THAT(sizeof(WaitSet<>), Eq(sizeof(iox_ws_storage_t)));
+    EXPECT_THAT(sizeof(WaitSet<>), Le(sizeof(iox_ws_storage_t)));
     EXPECT_THAT(alignof(WaitSet<>), Le(alignof(iox_ws_storage_t)));
 }
 
 TEST(iox_types_test, UserTriggerStorageSizeFits)
 {
-    EXPECT_THAT(sizeof(UserTrigger), Eq(sizeof(iox_user_trigger_storage_t)));
+    EXPECT_THAT(sizeof(UserTrigger), Le(sizeof(iox_user_trigger_storage_t)));
     EXPECT_THAT(alignof(UserTrigger), Le(alignof(iox_user_trigger_storage_t)));
 }
 
 TEST(iox_types_test, cpp2c_SubscriberStorageSizeFits)
 {
-    EXPECT_THAT(sizeof(cpp2c_Subscriber), Eq(sizeof(iox_sub_storage_t)));
+    EXPECT_THAT(sizeof(cpp2c_Subscriber), Le(sizeof(iox_sub_storage_t)));
     EXPECT_THAT(alignof(cpp2c_Subscriber), Le(alignof(iox_sub_storage_t)));
 }
 
 TEST(iox_types_test, cpp2c_PublisherStorageSizeFits)
 {
-    EXPECT_THAT(sizeof(cpp2c_Publisher), Eq(sizeof(iox_pub_storage_t)));
+    EXPECT_THAT(sizeof(cpp2c_Publisher), Le(sizeof(iox_pub_storage_t)));
     EXPECT_THAT(alignof(cpp2c_Publisher), Le(alignof(iox_pub_storage_t)));
 }