diff --git a/cmd/zpool/zpool_main.c b/cmd/zpool/zpool_main.c
index 280160678..07fabde8a 100644
--- a/cmd/zpool/zpool_main.c
+++ b/cmd/zpool/zpool_main.c
@@ -6128,8 +6128,8 @@ print_list_stats(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
 	char *vname;
 	boolean_t scripted = cb->cb_scripted;
 	uint64_t islog = B_FALSE;
-	char *dashes = "%-*s      -      -      -        -         "
-	    "-      -      -      -  -\n";
+	const char *dashes = "%-*s      -      -      -        -         "
+	    "-      -      -      -         -\n";
 
 	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
 	    (uint64_t **)&vs, &c) == 0);