diff --git a/util-linux/nfsmount.h b/util-linux/nfsmount.h
index 78a1bdf..60e2019 100644
--- a/util-linux/nfsmount.h
+++ b/util-linux/nfsmount.h
@@ -91,7 +91,7 @@
 	fhandle3 fhandle;
 	struct {
 		unsigned int auth_flavours_len;
-		int *auth_flavours_val;
+		char *auth_flavours_val;
 	} auth_flavours;
 };
 typedef struct mountres3_ok mountres3_ok;