diff --git a/test/invariant/DopplerHandler.sol b/test/invariant/DopplerHandler.sol
index 543511e4..e9ab6a82 100644
--- a/test/invariant/DopplerHandler.sol
+++ b/test/invariant/DopplerHandler.sol
@@ -189,4 +189,8 @@ contract DopplerHandler is Test {
             ghost_reserve1 += sold;
         }
     }
+
+    function goNextEpoch() public countCall(this.goNextEpoch.selector) {
+        vm.warp(block.timestamp + hook.getEpochLength());
+    }
 }