diff --git a/cmake/compiler/clang/settings.cmake b/cmake/compiler/clang/settings.cmake
index ae07b1fc39..2de9e79ad8 100644
--- a/cmake/compiler/clang/settings.cmake
+++ b/cmake/compiler/clang/settings.cmake
@@ -13,3 +13,6 @@ if(WITH_COREDEBUG)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
   message(STATUS "Clang: Debug-flags set (-g3)")
 endif()
+
+# -Wno-narrowing needed to suppress a warning in g3d
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wno-narrowing")