diff --git a/src/common/platform/win32/i_dijoy.cpp b/src/common/platform/win32/i_dijoy.cpp
index 523e18391..024d24420 100644
--- a/src/common/platform/win32/i_dijoy.cpp
+++ b/src/common/platform/win32/i_dijoy.cpp
@@ -38,6 +38,7 @@
 
 // HEADER FILES ------------------------------------------------------------
 
+#ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN
 #endif
 #define DIRECTINPUT_VERSION 0x800