diff --git a/src/mesh/mesh_access.c b/src/mesh/mesh_access.c
index 0ba0734c5..b0580d1e2 100644
--- a/src/mesh/mesh_access.c
+++ b/src/mesh/mesh_access.c
@@ -278,7 +278,7 @@ uint8_t mesh_access_transitions_num_steps_from_gdtt(uint8_t time_gdtt){
     return time_gdtt & 0x3fu;
 }
 
-static uint32_t mesh_access_transitions_step_ms_from_gdtt(uint8_t time_gdtt){
+uint32_t mesh_access_transitions_step_ms_from_gdtt(uint8_t time_gdtt){
     mesh_default_transition_step_resolution_t step_resolution = (mesh_default_transition_step_resolution_t) (time_gdtt >> 6);
     switch (step_resolution){
         case MESH_DEFAULT_TRANSITION_STEP_RESOLUTION_100ms:
diff --git a/src/mesh/mesh_access.h b/src/mesh/mesh_access.h
index 90716a7c6..a9d0076a1 100644
--- a/src/mesh/mesh_access.h
+++ b/src/mesh/mesh_access.h
@@ -185,9 +185,10 @@ void mesh_access_send_unacknowledged_pdu(mesh_pdu_t * pdu);
  */
 void mesh_access_send_acknowledged_pdu(mesh_pdu_t * pdu, uint8_t retransmissions, uint32_t ack_opcode);
 
-uint8_t mesh_access_transitions_num_steps_from_gdtt(uint8_t time_gdtt);
+uint32_t mesh_access_transitions_step_ms_from_gdtt(uint8_t time_gdtt);
+uint8_t  mesh_access_transitions_num_steps_from_gdtt(uint8_t time_gdtt);
 uint32_t mesh_access_time_gdtt2ms(uint8_t time_gdtt);
-uint8_t mesh_access_time_as_gdtt(uint32_t step_resolution_ms, uint32_t time_ms);
+uint8_t  mesh_access_time_as_gdtt(uint32_t step_resolution_ms, uint32_t time_ms);
 
 void mesh_access_emit_state_update_bool(btstack_packet_handler_t event_handler, uint8_t element_index, uint32_t model_identifier,
     model_state_id_t state_identifier, model_state_update_reason_t reason, uint8_t value);