diff --git a/src/LoRa.cpp b/src/LoRa.cpp
index df2bea0..78eb172 100644
--- a/src/LoRa.cpp
+++ b/src/LoRa.cpp
@@ -304,10 +304,15 @@ void LoRaClass::onReceive(void(*callback)(int))
     pinMode(_dio0, INPUT);
 
     writeRegister(REG_DIO_MAPPING_1, 0x00);
-
+#ifdef SPI_HAS_NOTUSINGINTERRUPT
+    SPI.usingInterrupt(digitalPinToInterrupt(_dio0));
+#endif
     attachInterrupt(digitalPinToInterrupt(_dio0), LoRaClass::onDio0Rise, RISING);
   } else {
     detachInterrupt(digitalPinToInterrupt(_dio0));
+#ifdef SPI_HAS_NOTUSINGINTERRUPT
+    SPI.notUsingInterrupt(digitalPinToInterrupt(_dio0));
+#endif
   }
 }
 
diff --git a/src/LoRa.h b/src/LoRa.h
index bf5fb06..a7ec8ff 100644
--- a/src/LoRa.h
+++ b/src/LoRa.h
@@ -85,7 +85,7 @@ private:
   int _ss;
   int _reset;
   int _dio0;
-  int _frequency;
+  long _frequency;
   int _packetIndex;
   int _implicitHeaderMode;
   void (*_onReceive)(int);