diff --git a/include/zenoh-pico/protocol/definitions/network.h b/include/zenoh-pico/protocol/definitions/network.h
index 3c3afd8e9..d0e763ca9 100644
--- a/include/zenoh-pico/protocol/definitions/network.h
+++ b/include/zenoh-pico/protocol/definitions/network.h
@@ -60,10 +60,19 @@
 
 typedef _z_qos_t _z_n_qos_t;
 
-_z_qos_t _z_n_qos_create(_Bool express, z_congestion_control_t congestion_control, z_priority_t priority);
-z_priority_t _z_n_qos_get_priority(_z_n_qos_t n_qos);
-z_congestion_control_t _z_n_qos_get_congestion_control(_z_n_qos_t n_qos);
-_Bool _z_n_qos_get_express(_z_n_qos_t n_qos);
+static inline _z_qos_t _z_n_qos_create(_Bool express, z_congestion_control_t congestion_control, z_priority_t priority) {
+    _z_n_qos_t ret;
+    _Bool nodrop = congestion_control == Z_CONGESTION_CONTROL_DROP ? 0 : 1;
+    ret._val = (uint8_t)((express << 4) | (nodrop << 3) | priority);
+    return ret;
+}
+static inline z_priority_t _z_n_qos_get_priority(_z_n_qos_t n_qos) {
+    return (z_priority_t)(n_qos._val & 0x07 /* 0b111 */);
+}
+static inline z_congestion_control_t _z_n_qos_get_congestion_control(_z_n_qos_t n_qos) {
+    return (n_qos._val & 0x08 /* 0b1000 */) ? Z_CONGESTION_CONTROL_BLOCK : Z_CONGESTION_CONTROL_DROP;
+}
+static inline _Bool _z_n_qos_get_express(_z_n_qos_t n_qos) { return (_Bool)(n_qos._val & 0x10 /* 0b10000 */); }
 #define _z_n_qos_make(express, nodrop, priority)                                                     \
     _z_n_qos_create((_Bool)express, nodrop ? Z_CONGESTION_CONTROL_BLOCK : Z_CONGESTION_CONTROL_DROP, \
                     (z_priority_t)priority)
diff --git a/src/protocol/definitions/network.c b/src/protocol/definitions/network.c
index 8c2fcf212..af5192b14 100644
--- a/src/protocol/definitions/network.c
+++ b/src/protocol/definitions/network.c
@@ -276,12 +276,3 @@ void _z_msg_fix_mapping(_z_zenoh_message_t *msg, uint16_t mapping) {
             break;
     }
 }
-_z_qos_t _z_n_qos_create(_Bool express, z_congestion_control_t congestion_control, z_priority_t priority) {
-    _Bool nodrop = congestion_control == Z_CONGESTION_CONTROL_DROP ? 0 : 1;
-    _z_n_qos_t ret = {._val = (uint8_t)((express << 4) | (nodrop << 3) | priority)};
-    return ret;
-}
-z_priority_t _z_n_qos_get_priority(_z_n_qos_t n_qos) { return (z_priority_t)(n_qos._val & 0x07 /* 0b111 */); }
-z_congestion_control_t _z_n_qos_get_congestion_control(_z_n_qos_t n_qos) {
-    return (n_qos._val & 0x08 /* 0b1000 */) ? Z_CONGESTION_CONTROL_BLOCK : Z_CONGESTION_CONTROL_DROP;
-}