diff --git a/winpr/include/winpr/winpr.h b/winpr/include/winpr/winpr.h
index cafd692a9..9961e985e 100644
--- a/winpr/include/winpr/winpr.h
+++ b/winpr/include/winpr/winpr.h
@@ -71,4 +71,6 @@ WINPR_API const char* winpr_get_build_date(void);
 WINPR_API const char* winpr_get_build_revision(void);
 WINPR_API const char* winpr_get_build_config(void);
 
+#define WINPR_UNUSED(x) (void)(x)
+
 #endif /* WINPR_H */