diff --git a/src/modules/SX127x/SX127x.cpp b/src/modules/SX127x/SX127x.cpp
index c8a42278..54e9e8f8 100644
--- a/src/modules/SX127x/SX127x.cpp
+++ b/src/modules/SX127x/SX127x.cpp
@@ -2,7 +2,9 @@
 #include <math.h>
 #if !RADIOLIB_EXCLUDE_SX127X
 
-SX127x::SX127x(Module* mod) : PhysicalLayer(RADIOLIB_SX127X_FREQUENCY_STEP_SIZE, RADIOLIB_SX127X_MAX_PACKET_LENGTH) {
+SX127x::SX127x(Module* mod) : PhysicalLayer() {
+  this->freqStep = RADIOLIB_SX127X_FREQUENCY_STEP_SIZE;
+  this->maxPacketLength = RADIOLIB_SX127X_MAX_PACKET_LENGTH;
   this->mod = mod;
 }