From e0f5c5fb7f5a4e6a5a592ba008b5a263f684d316 Mon Sep 17 00:00:00 2001
From: emilio <emilio@ethlend.io>
Date: Mon, 19 Oct 2020 15:29:42 +0200
Subject: [PATCH] Fixes PVE002

---
 contracts/libraries/math/WadRayMath.sol | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contracts/libraries/math/WadRayMath.sol b/contracts/libraries/math/WadRayMath.sol
index 7da5fc81..4d6d02f5 100644
--- a/contracts/libraries/math/WadRayMath.sol
+++ b/contracts/libraries/math/WadRayMath.sol
@@ -54,7 +54,7 @@ library WadRayMath {
    * @return the result of a*b, in wad
    **/
   function wadMul(uint256 a, uint256 b) internal pure returns (uint256) {
-    if (a == 0) {
+    if (a == 0 || b == 0) {
       return 0;
     }