diff --git a/examples/SX126x/SX126x_Channel_Activity_Detection_Interrupt/SX126x_Channel_Activity_Detection_Interrupt.ino b/examples/SX126x/SX126x_Channel_Activity_Detection_Interrupt/SX126x_Channel_Activity_Detection_Interrupt.ino
index ed658daa..f7763773 100644
--- a/examples/SX126x/SX126x_Channel_Activity_Detection_Interrupt/SX126x_Channel_Activity_Detection_Interrupt.ino
+++ b/examples/SX126x/SX126x_Channel_Activity_Detection_Interrupt/SX126x_Channel_Activity_Detection_Interrupt.ino
@@ -71,6 +71,9 @@ volatile bool enableInterrupt = true;
 // is received by the module
 // IMPORTANT: this function MUST be 'void' type
 //            and MUST NOT have any arguments!
+#if defined(ESP8266) || defined(ESP32)
+  ICACHE_RAM_ATTR
+#endif
 void setFlag(void) {
   // check if the interrupt is enabled
   if(!enableInterrupt) {
diff --git a/examples/SX126x/SX126x_Receive_Interrupt/SX126x_Receive_Interrupt.ino b/examples/SX126x/SX126x_Receive_Interrupt/SX126x_Receive_Interrupt.ino
index d50f2849..4132617c 100644
--- a/examples/SX126x/SX126x_Receive_Interrupt/SX126x_Receive_Interrupt.ino
+++ b/examples/SX126x/SX126x_Receive_Interrupt/SX126x_Receive_Interrupt.ino
@@ -88,6 +88,9 @@ volatile bool enableInterrupt = true;
 // is received by the module
 // IMPORTANT: this function MUST be 'void' type
 //            and MUST NOT have any arguments!
+#if defined(ESP8266) || defined(ESP32)
+  ICACHE_RAM_ATTR
+#endif
 void setFlag(void) {
   // check if the interrupt is enabled
   if(!enableInterrupt) {
diff --git a/examples/SX126x/SX126x_Transmit_Interrupt/SX126x_Transmit_Interrupt.ino b/examples/SX126x/SX126x_Transmit_Interrupt/SX126x_Transmit_Interrupt.ino
index 19e76817..69fd17c7 100644
--- a/examples/SX126x/SX126x_Transmit_Interrupt/SX126x_Transmit_Interrupt.ino
+++ b/examples/SX126x/SX126x_Transmit_Interrupt/SX126x_Transmit_Interrupt.ino
@@ -80,6 +80,9 @@ volatile bool enableInterrupt = true;
 // is transmitted by the module
 // IMPORTANT: this function MUST be 'void' type
 //            and MUST NOT have any arguments!
+#if defined(ESP8266) || defined(ESP32)
+  ICACHE_RAM_ATTR
+#endif
 void setFlag(void) {
   // check if the interrupt is enabled
   if(!enableInterrupt) {