diff --git a/super-intel.c b/super-intel.c
index 28472a1..3dfc243 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -11783,6 +11783,8 @@ static int imsm_fix_size_mismatch(struct supertype *st, int subarray_index)
 		} else {
 			imsm_sync_metadata(st);
 		}
+
+		free(update);
 	}
 	ret_val = 0;
 exit: