diff --git a/src/Module.cpp b/src/Module.cpp
index 5046da63..522d6ae2 100644
--- a/src/Module.cpp
+++ b/src/Module.cpp
@@ -8,6 +8,8 @@
 mbed::PwmOut *pwmPin = NULL;
 #endif
 
+const Module::RfSwitchMode_t Module::END_OF_MODE_TABLE = {Module::MODE_END_OF_TABLE, {}};
+
 Module::Module(RADIOLIB_PIN_TYPE cs, RADIOLIB_PIN_TYPE irq, RADIOLIB_PIN_TYPE rst, RADIOLIB_PIN_TYPE gpio):
   _cs(cs),
   _irq(irq),
diff --git a/src/Module.h b/src/Module.h
index 78793d0a..526f24fa 100644
--- a/src/Module.h
+++ b/src/Module.h
@@ -62,7 +62,7 @@ class Module {
      *
      * See setRfSwitchTable() for details.
      */
-    static constexpr RfSwitchMode_t END_OF_MODE_TABLE = {MODE_END_OF_TABLE, {}};
+    static const RfSwitchMode_t END_OF_MODE_TABLE;
 
     #if defined(RADIOLIB_BUILD_ARDUINO)
 
diff --git a/src/modules/SX126x/STM32WLx.cpp b/src/modules/SX126x/STM32WLx.cpp
index 744f88c3..6897dfc1 100644
--- a/src/modules/SX126x/STM32WLx.cpp
+++ b/src/modules/SX126x/STM32WLx.cpp
@@ -11,6 +11,8 @@ This file is licensed under the MIT License: https://opensource.org/licenses/MIT
 
 #include <SubGhz.h>
 
+const Module::RfSwitchMode_t STM32WLx::END_OF_MODE_TABLE = {Module::MODE_END_OF_TABLE, {}};
+
 STM32WLx::STM32WLx(STM32WLx_Module* mod) : SX1262(mod) {
 }
 
diff --git a/src/modules/SX126x/STM32WLx.h b/src/modules/SX126x/STM32WLx.h
index 5778dfb1..ad7faffb 100644
--- a/src/modules/SX126x/STM32WLx.h
+++ b/src/modules/SX126x/STM32WLx.h
@@ -63,7 +63,7 @@ class STM32WLx : public SX1262 {
         MODE_TX_HP,
     };
     /*! \copydoc Module::END_OF_MODE_TABLE */
-    static constexpr auto END_OF_MODE_TABLE = Module::END_OF_MODE_TABLE;
+    static const Module::RfSwitchMode_t END_OF_MODE_TABLE;
 
     // basic methods