diff --git a/src/modules/SX126x/SX126x.h b/src/modules/SX126x/SX126x.h
index 16a955a5..ee99a27f 100644
--- a/src/modules/SX126x/SX126x.h
+++ b/src/modules/SX126x/SX126x.h
@@ -809,9 +809,9 @@ class SX126x: public PhysicalLayer {
    /*!
      \brief Get instantaneous RSSI value during recption of the packet. Should switch to FSK receive mode for LBT implementation.
 
-     \returns Instantaneous RSSI value in (-2)*dBm.
+     \returns Instantaneous RSSI value in dBm, in steps of 0.5dBm
    */
-   uint8_t getRSSIInst();
+   float getRSSIInst();
 
    /*!
      \brief Set implicit header mode for future reception/transmission.