diff --git a/src/FuzzBase.sol b/src/FuzzBase.sol
index 277b22a..5ccb6dd 100644
--- a/src/FuzzBase.sol
+++ b/src/FuzzBase.sol
@@ -5,5 +5,8 @@ import "./Logging.sol";
 import "./Constants.sol";
 import "./AssertWrapper.sol";
 import "./ClampWrapper.sol";
+import "./IHevm.sol";
 
-abstract contract FuzzBase is AssertWrapper, ClampWrapper, Logging, Constants {}
+abstract contract FuzzBase is AssertWrapper, ClampWrapper, Logging, Constants {
+    IHevm internal vm = IHevm(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D);
+}