diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index 986e6e4081c7..d76eb7b39f56 100644
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -209,11 +209,10 @@ long long ubifs_calc_available(const struct ubifs_info *c, int min_idx_lebs)
 	subtract_lebs += 1;
 
 	/*
-	 * The GC journal head LEB is not really accessible. And since
-	 * different write types go to different heads, we may count only on
-	 * one head's space.
+	 * Since different write types go to different heads, we should
+	 * reserve one leb for each head.
 	 */
-	subtract_lebs += c->jhead_cnt - 1;
+	subtract_lebs += c->jhead_cnt;
 
 	/* We also reserve one LEB for deletions, which bypass budgeting */
 	subtract_lebs += 1;