diff --git a/src/hackbench/hackbench.c b/src/hackbench/hackbench.c
index 2fccecf..abc21a0 100644
--- a/src/hackbench/hackbench.c
+++ b/src/hackbench/hackbench.c
@@ -147,7 +147,9 @@ again:
 		if (done < DATASIZE)
 			goto again;
 	}
-
+	if (ctx) {
+		free(ctx);
+	}
 	return NULL;
 }