diff --git a/OpenSprinkler.cpp b/OpenSprinkler.cpp
index 6e0f9855..0a22de92 100644
--- a/OpenSprinkler.cpp
+++ b/OpenSprinkler.cpp
@@ -364,7 +364,7 @@ unsigned char OpenSprinkler::iopts[] = {
 	100,// this and next byte define flow pulse rate (100x)
 	0,  // default is 1.00 (100)
 	0,  // set as remote extension
-	8,  // this and the next three byte define the custom dns server ip
+	8,  // this and the next three bytes define the custom dns server ip
 	8,
 	8,
 	8,
@@ -429,7 +429,7 @@ bool detect_i2c(int addr) {
 bool OpenSprinkler::load_hardware_mac(unsigned char* buffer, bool wired) {
 #if defined(ESP8266)
 	WiFi.macAddress((unsigned char*)buffer);
-	// if requesting wired Ethernet MAC, flip the last unsigned char to create a modified MAC
+	// if requesting wired Ethernet MAC, flip the last byte to create a modified MAC
 	if(wired) buffer[5] = ~buffer[5];
 	return true;
 #else
diff --git a/utils.cpp b/utils.cpp
index 60c28174..b9209ec1 100644
--- a/utils.cpp
+++ b/utils.cpp
@@ -424,14 +424,14 @@ ulong water_time_resolve(uint16_t v) {
 }
 
 // encode a 16-bit signed water time (-600 to 600)
-// to unsigned unsigned char (0 to 240)
+// to unsigned byte (0 to 240)
 unsigned char water_time_encode_signed(int16_t i) {
 	i=(i>600)?600:i;
 	i=(i<-600)?-600:i;
 	return (i+600)/5;
 }
 
-// decode a 8-bit unsigned unsigned char (0 to 240)
+// decode a 8-bit unsigned byte (0 to 240)
 // to a 16-bit signed water time (-600 to 600)
 int16_t water_time_decode_signed(unsigned char i) {
 	i=(i>240)?240:i;