diff --git a/libc/kernel/uapi/linux/wireless.h b/libc/kernel/uapi/linux/wireless.h
index eb57fff..e6b0330 100644
--- a/libc/kernel/uapi/linux/wireless.h
+++ b/libc/kernel/uapi/linux/wireless.h
@@ -314,7 +314,7 @@
   struct sockaddr addr;
   __u16 alg;
   __u16 key_len;
-  __u8 key[0];
+  __u8 key[];
 };
 struct iw_mlme {
   __u16 cmd;