diff --git a/srsenb/hdr/phy/txrx.h b/srsenb/hdr/phy/txrx.h
index 01ce9764e..09b5e256d 100644
--- a/srsenb/hdr/phy/txrx.h
+++ b/srsenb/hdr/phy/txrx.h
@@ -37,7 +37,8 @@ class txrx final : public srslte::thread
 {
 public:
   txrx();
-  bool init(srslte::radio_interface_phy* radio_handler,
+  bool init(stack_interface_phy_lte*     stack_,
+            srslte::radio_interface_phy* radio_handler,
             srslte::thread_pool*         _workers_pool,
             phy_common*                  worker_com,
             prach_worker_pool*           prach_,
@@ -48,6 +49,7 @@ public:
 private:
   void run_thread() override;
 
+  stack_interface_phy_lte*     stack        = nullptr;
   srslte::radio_interface_phy* radio_h      = nullptr;
   srslte::log*                 log_h        = nullptr;
   srslte::thread_pool*         workers_pool = nullptr;
diff --git a/srsenb/src/phy/phy.cc b/srsenb/src/phy/phy.cc
index 56c5aa4e2..3c41077fb 100644
--- a/srsenb/src/phy/phy.cc
+++ b/srsenb/src/phy/phy.cc
@@ -130,7 +130,7 @@ int phy::init(const phy_args_t&            args,
   prach.set_max_prach_offset_us(args.max_prach_offset_us);
 
   // Warning this must be initialized after all workers have been added to the pool
-  tx_rx.init(radio, &workers_pool, &workers_common, &prach, log_vec.at(0).get(), SF_RECV_THREAD_PRIO);
+  tx_rx.init(stack_, radio, &workers_pool, &workers_common, &prach, log_vec.at(0).get(), SF_RECV_THREAD_PRIO);
 
   initialized = true;
 
diff --git a/srsenb/src/phy/phy_common.cc b/srsenb/src/phy/phy_common.cc
index 9c2a5d939..1c134e0ab 100644
--- a/srsenb/src/phy/phy_common.cc
+++ b/srsenb/src/phy/phy_common.cc
@@ -139,9 +139,6 @@ void phy_common::worker_end(void*                   tx_sem_id,
   // Always transmit on single radio
   radio->tx(buffer, tx_time);
 
-  // Trigger MAC clock
-  stack->tti_clock();
-
   // Allow next TTI to transmit
   semaphore.release();
 }
diff --git a/srsenb/src/phy/txrx.cc b/srsenb/src/phy/txrx.cc
index dc111e343..c8d492752 100644
--- a/srsenb/src/phy/txrx.cc
+++ b/srsenb/src/phy/txrx.cc
@@ -50,13 +50,15 @@ txrx::txrx() : thread("TXRX")
   /* Do nothing */
 }
 
-bool txrx::init(srslte::radio_interface_phy* radio_h_,
+bool txrx::init(stack_interface_phy_lte*     stack_,
+                srslte::radio_interface_phy* radio_h_,
                 srslte::thread_pool*         workers_pool_,
                 phy_common*                  worker_com_,
                 prach_worker_pool*           prach_,
                 srslte::log*                 log_h_,
                 uint32_t                     prio_)
 {
+  stack         = stack_;
   radio_h       = radio_h_;
   log_h         = log_h_;
   workers_pool  = workers_pool_;
@@ -161,6 +163,10 @@ void txrx::run_thread()
       for (uint32_t cc = 0; cc < worker_com->get_nof_carriers(); cc++) {
         prach->new_tti(cc, tti, buffer.get(worker_com->get_rf_port(cc), 0, worker_com->get_nof_ports(0)));
       }
+
+      // Advance stack in time
+      stack->tti_clock();
+
     } else {
       // wait_worker() only returns NULL if it's being closed. Quit now to avoid unnecessary loops here
       running = false;