diff --git a/build/cmake/init.cmake b/build/cmake/init.cmake
index b0f7558ceb..b369e06b87 100644
--- a/build/cmake/init.cmake
+++ b/build/cmake/init.cmake
@@ -43,7 +43,11 @@ if(MSVC)
     endif()
 elseif(CMAKE_COMPILER_IS_GNUCC)
     if(wxBUILD_USE_STATIC_RUNTIME)
-        set(STATIC_LINKER_FLAGS " -static-libgcc -static-libstdc++")
+        if(MINGW)
+            set(STATIC_LINKER_FLAGS " -static -Wl,--allow-multiple-definition")
+        else()
+            set(STATIC_LINKER_FLAGS " -static-libgcc -static-libstdc++")
+        endif()
         wx_string_append(CMAKE_EXE_LINKER_FLAGS "${STATIC_LINKER_FLAGS}")
         wx_string_append(CMAKE_SHARED_LINKER_FLAGS "${STATIC_LINKER_FLAGS}")
     endif()