diff --git a/sim/testbench.cpp b/sim/testbench.cpp
index 0969019..2a729a6 100644
--- a/sim/testbench.cpp
+++ b/sim/testbench.cpp
@@ -370,7 +370,5 @@ bool setRvalid(int *rvalid_delay, bool *read_outstanding)
     return false;
 }
 
-int genGntDelay()    { return 0; }  
+int genGntDelay()    { return distribution(generator); }  
 int genRvalidDelay() { return distribution(generator); }
-
-// { return distribution(generator); }
diff --git a/src b/src
index e8155c9..c72a6c5 160000
--- a/src
+++ b/src
@@ -1 +1 @@
-Subproject commit e8155c928e8e933491008db80a7f1656021aef52
+Subproject commit c72a6c5c4d9d1603de0b9c6d9abc4ba3529ef701