diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8c6b0289b..79e0152ef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -98,7 +98,7 @@ else()
     set(CMAKE_RANLIB "gcc-ranlib")
   endif()
   if(MINGW)
-    set(WARNINGS "${WARNINGS} -Wno-error=unused-value")
+    set(WARNINGS "${WARNINGS} -Wno-error=unused-value -Wno-error=unused-but-set-variable")
     set(MINGW_FLAG "-DWIN32_LEAN_AND_MEAN")
     include_directories(SYSTEM src/platform/mingw)
   else()