diff --git a/code/leak.c b/code/leak.c
index 75743c792..645bfff44 100644
--- a/code/leak.c
+++ b/code/leak.c
@@ -56,7 +56,7 @@ main(void)
 
 		write(pipes[i][1], buffer, 8);
 
-		size_t delta = t0 - t1;
+		t_delta = t0 - t1;
 
 		if (t_delta > (t_prev + 1000)) {
 			if (last_slab == (size_t)-1) {