diff --git a/module/zfs/zpl_super.c b/module/zfs/zpl_super.c
index bcdbbd69e280..91c36c9e3675 100644
--- a/module/zfs/zpl_super.c
+++ b/module/zfs/zpl_super.c
@@ -336,12 +336,12 @@ zpl_parse_options(char *osname, char *mntopts, zfs_mntopts_t *zmo,
 
 	if (mntopts) {
 		substring_t args[MAX_OPT_ARGS];
-		char *tmp_mntopts, *p;
+		char *tmp_mntopts, *p, *t;
 		int token;
 
-		tmp_mntopts = strdup(mntopts);
+		t = tmp_mntopts = strdup(mntopts);
 
-		while ((p = strsep(&tmp_mntopts, ",")) != NULL) {
+		while ((p = strsep(&t, ",")) != NULL) {
 			if (!*p)
 				continue;