diff --git a/src/HTTPServer/CMakeLists.txt b/src/HTTPServer/CMakeLists.txt
index ab3828aae..e25628f7f 100644
--- a/src/HTTPServer/CMakeLists.txt
+++ b/src/HTTPServer/CMakeLists.txt
@@ -27,6 +27,7 @@ SET (HDRS
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
 	set_source_files_properties(HTTPServer.cpp PROPERTIES COMPILE_FLAGS "-Wno-error=global-constructors -Wno-error=old-style-cast")
 	set_source_files_properties(HTTPConnection.cpp PROPERTIES COMPILE_FLAGS "-Wno-error=switch-enum")
+	set_source_files_properties(HTTPMessage.cpp PROPERTIES COMPILE_FLAGS "-Wno-error=tautological-compare")
 endif()
 
 if(NOT MSVC)