diff --git a/lib/src/upper/pdcp_entity_nr.cc b/lib/src/upper/pdcp_entity_nr.cc
index f7ddd2ca9..3c47508b8 100644
--- a/lib/src/upper/pdcp_entity_nr.cc
+++ b/lib/src/upper/pdcp_entity_nr.cc
@@ -110,7 +110,7 @@ void pdcp_entity_nr::write_sdu(unique_byte_buffer_t sdu, bool blocking)
     discard_timer.set(static_cast<uint32_t>(cfg.discard_timer), discard_fnc);
     discard_timer.run();
     discard_timers_map.insert(std::make_pair(tx_next, std::move(discard_timer)));
-    log->debug("Discard Timer set for SN %" PRIu32 ". Timeout: %" PRIu32 "ms\n",
+    log->debug("Discard Timer set for SN %u. Timeout: %ums\n",
                tx_next,
                static_cast<uint32_t>(cfg.discard_timer));
   }
@@ -178,7 +178,7 @@ void pdcp_entity_nr::write_pdu(unique_byte_buffer_t pdu)
   }
   rcvd_count = COUNT(rcvd_hfn, rcvd_sn);
 
-  log->debug("RCVD_HFN %" PRIu32 " RCVD_SN %" PRIu32 ", RCVD_COUNT %" PRIu32 "\n", rcvd_hfn, rcvd_sn, rcvd_count);
+  log->debug("RCVD_HFN %u RCVD_SN %u, RCVD_COUNT %u\n", rcvd_hfn, rcvd_sn, rcvd_count);
 
   // Decripting
   cipher_decrypt(pdu->msg, pdu->N_bytes, rcvd_count, pdu->msg);
@@ -192,7 +192,7 @@ void pdcp_entity_nr::write_pdu(unique_byte_buffer_t pdu)
   // Check valid rcvd_count
   if (rcvd_count < rx_deliv) {
     log->debug("Out-of-order after time-out, duplicate or COUNT wrap-around\n");
-    log->debug("RCVD_COUNT %" PRIu32 ", RCVD_COUNT %" PRIu32 "\n", rcvd_count, rx_deliv);
+    log->debug("RCVD_COUNT %u, RCVD_COUNT %u\n", rcvd_count, rx_deliv);
     return; // Invalid count, drop.
   }
 
@@ -320,7 +320,7 @@ void pdcp_entity_nr::deliver_all_consecutive_counts()
   for (std::map<uint32_t, unique_byte_buffer_t>::iterator it = reorder_queue.begin();
        it != reorder_queue.end() && it->first == rx_deliv;
        reorder_queue.erase(it++)) {
-    log->debug("Delivering SDU with RCVD_COUNT %" PRIu32 "\n", it->first);
+    log->debug("Delivering SDU with RCVD_COUNT %u\n", it->first);
 
     // Check RX_DELIV overflow
     if (rx_overflow) {
diff --git a/lib/src/upper/rlc_um_base.cc b/lib/src/upper/rlc_um_base.cc
index b0b61e664..73473b49a 100644
--- a/lib/src/upper/rlc_um_base.cc
+++ b/lib/src/upper/rlc_um_base.cc
@@ -107,7 +107,7 @@ void rlc_um_base::write_sdu(unique_byte_buffer_t sdu, bool blocking)
 void rlc_um_base::discard_sdu(uint32_t discard_sn)
 {
   if (not tx_enabled || not tx) {
-    log->debug("%s is currently deactivated. Ignoring SDU discard(SN %" PRIu32 ")\n", rb_name.c_str(), discard_sn);
+    log->debug("%s is currently deactivated. Ignoring SDU discard(SN %u)\n", rb_name.c_str(), discard_sn);
     metrics.num_dropped_sdus++;
     return;
   }
diff --git a/lib/test/upper/pdcp_nr_test.h b/lib/test/upper/pdcp_nr_test.h
index 10508d556..8d958a0a9 100644
--- a/lib/test/upper/pdcp_nr_test.h
+++ b/lib/test/upper/pdcp_nr_test.h
@@ -143,7 +143,7 @@ public:
   }
   void discard_sdu(uint32_t lcid, uint32_t discard_sn)
   {
-    log->info("Notifing RLC to discard SDU (SN=%" PRIu32 ")\n", discard_sn);
+    log->info("Notifing RLC to discard SDU (SN=%u)\n", discard_sn);
     discard_count++;
     log->info("Discard_count=%" PRIu64 "\n", discard_count);
   }