diff --git a/openair1/SCHED_NR/phy_procedures_nr_gNB.c b/openair1/SCHED_NR/phy_procedures_nr_gNB.c
index 270123aeda..1685e206ae 100644
--- a/openair1/SCHED_NR/phy_procedures_nr_gNB.c
+++ b/openair1/SCHED_NR/phy_procedures_nr_gNB.c
@@ -401,7 +401,7 @@ void nr_ulsch_procedures(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx, int ULSCH
 
 void nr_fill_indication(PHY_VARS_gNB *gNB, int frame, int slot_rx, int ULSCH_id, uint8_t harq_pid, uint8_t crc_flag, int dtx_flag) {
 
-  //pthread_mutex_lock(&gNB->UL_INFO_mutex);
+  pthread_mutex_lock(&gNB->UL_INFO_mutex);
 
   NR_gNB_ULSCH_t                       *ulsch                 = gNB->ulsch[ULSCH_id][0];
   NR_UL_gNB_HARQ_t                     *harq_process          = ulsch->harq_processes[harq_pid];
@@ -526,7 +526,7 @@ void nr_fill_indication(PHY_VARS_gNB *gNB, int frame, int slot_rx, int ULSCH_id,
 
   gNB->UL_INFO.rx_ind.number_of_pdus++;
 
-//  pthread_mutex_unlock(&gNB->UL_INFO_mutex);
+  pthread_mutex_unlock(&gNB->UL_INFO_mutex);
 }
 
 // Function to fill UL RB mask to be used for N0 measurements