diff --git a/RFM69.cpp b/RFM69.cpp
index a77fe38..6f04f00 100644
--- a/RFM69.cpp
+++ b/RFM69.cpp
@@ -550,7 +550,7 @@ void RFM69::setCS(uint8_t newSPISlaveSelect) {
 }
 
 // set the IRQ pin
-bool setIrq(uint8_t newIRQPin) {
+bool RFM69::setIrq(uint8_t newIRQPin) {
   uint8_t _newInterruptNum = digitalPinToInterrupt(newIRQPin);
   if (_newInterruptNum == NOT_AN_INTERRUPT) return false;
 #ifdef RF69_ATTACHINTERRUPT_TAKES_PIN_NUMBER
diff --git a/keywords.txt b/keywords.txt
index d787857..50c4d90 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -29,6 +29,7 @@ setFrequency	KEYWORD2
 getFrequency	KEYWORD2
 encrypt	KEYWORD2
 setCS	KEYWORD2
+setIrq	KEYWORD2
 readRSSI	KEYWORD2
 spyMode	KEYWORD2
 setHighPower	KEYWORD2