diff --git a/radio/src/thirdparty/libopenui/src/libopenui_defines.h b/radio/src/thirdparty/libopenui/src/libopenui_defines.h
index 5382a4080..19e598080 100644
--- a/radio/src/thirdparty/libopenui/src/libopenui_defines.h
+++ b/radio/src/thirdparty/libopenui/src/libopenui_defines.h
@@ -74,9 +74,16 @@
 
 #if defined(__MINGW32__) || !defined(__GNUC__)
   #include <windows.h>
+  #include <tchar.h>
+  #define sleep(x) Sleep(x)
+  #define strcasecmp  _stricmp
+  #define strncasecmp _strnicmp
+  #define chdir  _chdir
+  #define getcwd _getcwd
   // remove windows default definitions
   #undef OPAQUE
   #undef RGB
+  #undef EXTERN_C
 #endif
 
 #define OPACITY_MAX                    0x0Fu