diff --git a/src/modules/LR11x0/LR11x0.cpp b/src/modules/LR11x0/LR11x0.cpp
index c51e7af9..e0f9d733 100644
--- a/src/modules/LR11x0/LR11x0.cpp
+++ b/src/modules/LR11x0/LR11x0.cpp
@@ -574,7 +574,7 @@ int16_t LR11x0::startChannelScan() {
   return(this->startChannelScan(config));
 }
 
-int16_t LR11x0::startChannelScan(ChannelScanConfig_t config) {
+int16_t LR11x0::startChannelScan(const ChannelScanConfig_t &config) {
   // check active modem
   int16_t state = RADIOLIB_ERR_NONE;
   uint8_t modem = RADIOLIB_LR11X0_PACKET_TYPE_NONE;
diff --git a/src/modules/LR11x0/LR11x0.h b/src/modules/LR11x0/LR11x0.h
index d7cf2d2a..5677ac46 100644
--- a/src/modules/LR11x0/LR11x0.h
+++ b/src/modules/LR11x0/LR11x0.h
@@ -982,7 +982,7 @@ class LR11x0: public PhysicalLayer {
       \param config CAD configuration structure.
       \returns \ref status_codes
     */
-    int16_t startChannelScan(ChannelScanConfig_t config) override;
+    int16_t startChannelScan(const ChannelScanConfig_t &config) override;
 
     /*!
       \brief Read the channel scan result