diff --git a/CMakeLists.txt b/CMakeLists.txt
index 490da4c7807..fc654747fca 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -175,6 +175,9 @@ if(MSVC)
   # TODO(jtattermusch): needed to build boringssl with VS2017, revisit later
   set(_gRPC_C_CXX_FLAGS "${_gRPC_C_CXX_FLAGS} /wd4987 /wd4774 /wd4819 /wd4996 /wd4619")
 endif()
+if (MINGW)
+  add_definitions(-D_WIN32_WINNT=0x600)
+endif()
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_gRPC_C_CXX_FLAGS}")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_gRPC_C_CXX_FLAGS}")
 
@@ -217,7 +220,7 @@ elseif(UNIX)
   set(_gRPC_ALLTARGETS_LIBRARIES ${CMAKE_DL_LIBS} rt m pthread)
 endif()
 
-if(WIN32 AND MSVC)
+if(WIN32)
   set(_gRPC_BASELIB_LIBRARIES wsock32 ws2_32 crypt32)
 endif()