diff --git a/src/wasapi.c b/src/wasapi.c
index faf4f34..8cff4bf 100644
--- a/src/wasapi.c
+++ b/src/wasapi.c
@@ -5,6 +5,10 @@
  * See http://opensource.org/licenses/MIT
  */
 
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+
 #define INITGUID
 #define CINTERFACE
 #define COBJMACROS