diff --git a/src/modules/Si443x/Si443x.cpp b/src/modules/Si443x/Si443x.cpp
index b8641aee..efc01c6d 100644
--- a/src/modules/Si443x/Si443x.cpp
+++ b/src/modules/Si443x/Si443x.cpp
@@ -134,10 +134,13 @@ int16_t Si443x::sleep() {
 }
 
 int16_t Si443x::standby() {
+  return(standby(RADIOLIB_SI443X_XTAL_ON));
+}
+
+int16_t Si443x::standby(uint8_t mode) {
   // set RF switch (if present)
   _mod->setRfSwitchState(Module::MODE_IDLE);
-
-  return(_mod->SPIsetRegValue(RADIOLIB_SI443X_REG_OP_FUNC_CONTROL_1, RADIOLIB_SI443X_XTAL_ON, 7, 0, 10));
+  return(_mod->SPIsetRegValue(RADIOLIB_SI443X_REG_OP_FUNC_CONTROL_1, mode, 7, 0, 10));
 }
 
 int16_t Si443x::transmitDirect(uint32_t frf) {
diff --git a/src/modules/Si443x/Si443x.h b/src/modules/Si443x/Si443x.h
index 6945e510..454214be 100644
--- a/src/modules/Si443x/Si443x.h
+++ b/src/modules/Si443x/Si443x.h
@@ -627,12 +627,21 @@ class Si443x: public PhysicalLayer {
     int16_t sleep();
 
     /*!
-      \brief Sets the module to standby.
+      \brief Sets the module to standby (with XTAL on).
 
       \returns \ref status_codes
     */
     int16_t standby() override;
 
+    /*!
+      \brief Sets the module to standby.
+
+      \param mode Standby mode to be used.
+
+      \returns \ref status_codes
+    */
+    int16_t standby(uint8_t mode) override;
+
     /*!
       \brief Enables direct transmission mode. While in direct mode, the module will not be able to transmit or receive packets.