diff --git a/libraries/MySensors/core/MyHwSAMD.cpp b/libraries/MySensors/core/MyHwSAMD.cpp
index 7ee7ccd..8fda54f 100644
--- a/libraries/MySensors/core/MyHwSAMD.cpp
+++ b/libraries/MySensors/core/MyHwSAMD.cpp
@@ -113,25 +113,25 @@ void hwReboot() {
 
 int8_t hwSleep(unsigned long ms) {
   // TODO: Not supported!
-  ms = ms + 1;
+  (void)ms;
   return -2;
 }
 
 int8_t hwSleep(uint8_t interrupt, uint8_t mode, unsigned long ms) {
   // TODO: Not supported!
-  interrupt = interrupt;
-  mode = mode;
-  ms = ms;
+  (void)interrupt;
+  (void)mode;
+  (void)ms;
   return -2;
 }
 
 int8_t hwSleep(uint8_t interrupt1, uint8_t mode1, uint8_t interrupt2, uint8_t mode2, unsigned long ms) {
   // TODO: Not supported!
-  interrupt1 = interrupt1;
-  mode1 = mode1;
-  interrupt2 = interrupt2;
-  mode2 = mode2;
-  ms = ms;
+  (void)interrupt1;
+  (void)mode1;
+  (void)interrupt2;
+  (void)mode2;
+  (void)ms;
   return -2;
 }
 
diff --git a/libraries/MySensors/core/MySensorCore.cpp b/libraries/MySensors/core/MySensorCore.cpp
index 59cf79d..f3a1451 100644
--- a/libraries/MySensors/core/MySensorCore.cpp
+++ b/libraries/MySensors/core/MySensorCore.cpp
@@ -353,9 +353,9 @@ int8_t sleep(uint8_t interrupt, uint8_t mode, unsigned long ms) {
 	#endif
 	#if defined(MY_REPEATER_FEATURE)
 		// not supported
-		interrupt = interrupt;
-		mode = mode;
-		ms = ms;
+		(void)interrupt;
+		(void)mode;
+		(void)ms;
 		return -2;
 	#else
 		#if defined(MY_RADIO_FEATURE)
@@ -383,11 +383,11 @@ int8_t sleep(uint8_t interrupt1, uint8_t mode1, uint8_t interrupt2, uint8_t mode
 	#endif
 	#if defined(MY_REPEATER_FEATURE)
 		// not supported
-		interrupt1 = interrupt1;
-		mode1 = mode1;
-		interrupt2 = interrupt2;
-		mode2 = mode2;
-		ms = ms;
+		(void)interrupt1;
+		(void)mode1;
+		(void)interrupt2;
+		(void)mode2;
+		(void)ms;
 		return -2;
 	#else
 		#if defined(MY_RADIO_FEATURE)