diff --git a/hardware/arduino/sam/cores/arduino/wiring_analog.c b/hardware/arduino/sam/cores/arduino/wiring_analog.c
index 2afa0c9e7..1385f01eb 100644
--- a/hardware/arduino/sam/cores/arduino/wiring_analog.c
+++ b/hardware/arduino/sam/cores/arduino/wiring_analog.c
@@ -293,7 +293,7 @@ void analogWrite(uint32_t ulPin, uint32_t ulValue) {
 		ETCChannel channel = g_APinDescription[ulPin].ulTCChannel;
 		static const uint32_t channelToChNo[] = { 0, 0, 1, 1, 2, 2, 0, 0, 1, 1, 2, 2, 0, 0, 1, 1, 2, 2 };
 		static const uint32_t channelToAB[]   = { 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 };
-		static const Tc *channelToTC[] = {
+		static Tc *channelToTC[] = {
 			TC0, TC0, TC0, TC0, TC0, TC0,
 			TC1, TC1, TC1, TC1, TC1, TC1,
 			TC2, TC2, TC2, TC2, TC2, TC2 };