diff --git a/libs/openzap/src/include/libteletone_generate.h b/libs/openzap/src/include/libteletone_generate.h
index 8a324216d0..5340f767cc 100644
--- a/libs/openzap/src/include/libteletone_generate.h
+++ b/libs/openzap/src/include/libteletone_generate.h
@@ -151,12 +151,12 @@ static __inline__ int16_t teletone_dds_modulate_sample(teletone_dds_state_t *dds
     return (int16_t) (sample * dds->scale_factor >> 15);
 }
 
-static __inline__ void teletone_dds_state_set_tx_level(teletone_dds_state_t *dds, teletone_process_t tx_level)
+static __inline__ void teletone_dds_state_set_tx_level(teletone_dds_state_t *dds, float tx_level)
 {
 	dds->scale_factor = (int) (powf(10.0f, (tx_level - DBM0_MAX_POWER) / 20.0f) * (32767.0f * 1.414214f));
 }
 
-static __inline__ void teletone_dds_state_set_tone(teletone_dds_state_t *dds, teletone_process_t tone, uint32_t rate, teletone_process_t tx_level)
+static __inline__ void teletone_dds_state_set_tone(teletone_dds_state_t *dds, teletone_process_t tone, uint32_t rate, float tx_level)
 {
 	dds->phase_accumulator = 0;
 	dds->phase_rate = (int32_t) ((tone * MAX_PHASE_ACCUMULATOR) / rate);