diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3670afe3a..8ef5085c1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -138,6 +138,9 @@ elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
   set(CMAKE_CXX_FLAGS
     "${CMAKE_CXX_FLAGS} -fsigned-char")
 
+elseif(MSVC)
+  # warning C4512: assignment operator could not be generated
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4512")
 endif()
 
 if(FLATBUFFERS_CODE_COVERAGE)