diff --git a/DCCTimerSTM32.cpp b/DCCTimerSTM32.cpp
index 640599f..3f66a5f 100644
--- a/DCCTimerSTM32.cpp
+++ b/DCCTimerSTM32.cpp
@@ -36,7 +36,9 @@
 HardwareSerial Serial1(PA10, PA15);  // Rx=PA10, Tx=PA15
 
 INTERRUPT_CALLBACK interruptHandler=0;
-// Let's use STM32's timer #1 until disabused of this notion
+// Let's use STM32's timer #11 until disabused of this notion
+// Timer #11 is used for "servo" library, but as DCC-EX is not using
+// this libary, we should be free and clear.
 HardwareTimer timer(TIM11);
 
 // Timer IRQ handler
@@ -44,8 +46,6 @@ void Timer11_Handler() {
   interruptHandler();
 }
 
-
-
 void DCCTimer::begin(INTERRUPT_CALLBACK callback) {
   interruptHandler=callback;
   noInterrupts();