diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index f98090b..711e00a 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -504,6 +504,13 @@
 			else if (idx == wdev->wext.default_mgmt_key)
 				wdev->wext.default_mgmt_key = -1;
 		}
+		/*
+		 * Applications using wireless extensions expect to be
+		 * able to delete keys that don't exist, so allow that.
+		 */
+		if (err == -ENOENT)
+			return 0;
+
 		return err;
 	} else {
 		if (addr)