diff --git a/Demo/PIC32MX_MPLAB/IntQueueTimer.c b/Demo/PIC32MX_MPLAB/IntQueueTimer.c
index e823dd6a77..15b40d0bd8 100644
--- a/Demo/PIC32MX_MPLAB/IntQueueTimer.c
+++ b/Demo/PIC32MX_MPLAB/IntQueueTimer.c
@@ -61,6 +61,9 @@
 void vT3InterruptHandler( void );
 void vT4InterruptHandler( void );
 
+/* As these interrupts use the FreeRTOS interrupt entry point, the IPL settings
+in the following prototypes have no effect.  The interrupt priorities are set
+by the ConfigIntTimerX() library calls in vInitialiseTimerForIntQueueTest(). */
 void __attribute__( (interrupt(ipl0), vector(_TIMER_3_VECTOR))) vT3InterruptWrapper( void );
 void __attribute__( (interrupt(ipl0), vector(_TIMER_4_VECTOR))) vT4InterruptWrapper( void );
 
diff --git a/Demo/PIC32MX_MPLAB/serial/serial.c b/Demo/PIC32MX_MPLAB/serial/serial.c
index 78b84c4e05..7bc98af09f 100644
--- a/Demo/PIC32MX_MPLAB/serial/serial.c
+++ b/Demo/PIC32MX_MPLAB/serial/serial.c
@@ -82,7 +82,10 @@ static portBASE_TYPE xTxHasEnded;
 
 /*-----------------------------------------------------------*/
 
-/* The UART interrupt handler. */
+/* The UART interrupt handler.  As this uses the FreeRTOS assembly interrupt
+entry point the IPL setting in the following prototype has no effect.  The
+interrupt priority is set by the call to  ConfigIntUART2() in 
+xSerialPortInitMinimal(). */
 void __attribute__( (interrupt(ipl1), vector(_UART2_VECTOR))) vU2InterruptWrapper( void );
 
 /*-----------------------------------------------------------*/
diff --git a/Demo/PIC32MX_MPLAB/timertest.c b/Demo/PIC32MX_MPLAB/timertest.c
index 6ea6ebd5c8..ba32d7a300 100644
--- a/Demo/PIC32MX_MPLAB/timertest.c
+++ b/Demo/PIC32MX_MPLAB/timertest.c
@@ -60,7 +60,9 @@
 /* The maximum value the 16bit timer can contain. */
 #define timerMAX_COUNT				0xffff
 
-/* The timer 2 interrupt handler. */
+/* The timer 2 interrupt handler.  As this interrupt uses the FreeRTOS assembly
+entry point the IPL setting in the following function prototype has no effect.
+The interrupt priority is set by ConfigIntTimer2() in vSetupTimerTest(). */
 void __attribute__( (interrupt(ipl0), vector(_TIMER_2_VECTOR))) vT2InterruptWrapper( void );
 
 /*-----------------------------------------------------------*/