diff --git a/winsup/w32api/include/winable.h b/winsup/w32api/include/winable.h
index b7326c5b0..cfee5a0e9 100644
--- a/winsup/w32api/include/winable.h
+++ b/winsup/w32api/include/winable.h
@@ -4,8 +4,6 @@
 #pragma GCC system_header
 #endif
 
-#include <stdarg.h>
-
 #ifdef __cplusplus
 extern "C" {
 #endif