diff --git a/DRAMSys/library/src/simulation/Arbiter.cpp b/DRAMSys/library/src/simulation/Arbiter.cpp
index 18b62a4a..a8c31caa 100644
--- a/DRAMSys/library/src/simulation/Arbiter.cpp
+++ b/DRAMSys/library/src/simulation/Arbiter.cpp
@@ -68,8 +68,9 @@ Arbiter::Arbiter(sc_module_name name) :
 tlm_sync_enum Arbiter::nb_transport_fw(int id, tlm_generic_payload &payload,
                               tlm_phase &phase, sc_time &fwDelay)
 {
-    sc_time notDelay = clkAlign(sc_time_stamp() + fwDelay) -
-                       (sc_time_stamp() + fwDelay);
+    sc_time notDelay = std::ceil((sc_time_stamp() + fwDelay) / Configuration::getInstance().memSpec->clk)
+            * Configuration::getInstance().memSpec->clk - sc_time_stamp();
+
     if (phase == BEGIN_REQ)
     {
         // adjust address offset: