diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8e753b5137..0df90ae7d6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -774,7 +774,7 @@ if(MSVC)
 elseif(MINGW)
   set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Wall -Werror -Wno-error=format= -Wno-error=format -Wno-error=format-extra-args")
 else()
-  set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Werror -Wall")
+  set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Werror -Wall -Wno-unknown-warning-option -Wno-error=class-memaccess")
 endif()
 
 if(MSVC)