diff --git a/extruder/temp.c b/extruder/temp.c
index 2d267f4..07dc1b1 100644
--- a/extruder/temp.c
+++ b/extruder/temp.c
@@ -49,7 +49,7 @@ struct {
 	uint16_t					last_read_temp; ///< last received reading
 	uint16_t					target_temp;		///< manipulate attached heater to attempt to achieve this value
 
-	uint8_t						temp_residency; ///< how long have we been close to target temperature?
+	uint16_t					temp_residency; ///< how long have we been close to target temperature in temp ticks?
 
 	uint16_t					next_read_time; ///< how long until we can read this sensor again?
 } temp_sensors_runtime[NUM_TEMP_SENSORS];
@@ -270,7 +270,7 @@ void temp_sensor_tick() {
 			temp_sensors_runtime[i].last_read_temp = temp;
 
 			if (labs((int16_t)(temp - temp_sensors_runtime[i].target_temp)) < (TEMP_HYSTERESIS*4)) {
-				if (temp_sensors_runtime[i].temp_residency < TEMP_RESIDENCY_TIME)
+				if (temp_sensors_runtime[i].temp_residency < (TEMP_RESIDENCY_TIME*100))
 					temp_sensors_runtime[i].temp_residency++;
 			}
 			else {
@@ -291,7 +291,7 @@ uint8_t	temp_achieved() {
 	uint8_t all_ok = 255;
 
 	for (i = 0; i < NUM_TEMP_SENSORS; i++) {
-		if (temp_sensors_runtime[i].temp_residency < TEMP_RESIDENCY_TIME)
+		if (temp_sensors_runtime[i].temp_residency < (TEMP_RESIDENCY_TIME*100))
 			all_ok = 0;
 	}
 	return all_ok;
diff --git a/temp.c b/temp.c
index b978277..0e5ef96 100644
--- a/temp.c
+++ b/temp.c
@@ -49,7 +49,7 @@ struct {
 	uint16_t					last_read_temp; ///< last received reading
 	uint16_t					target_temp;		///< manipulate attached heater to attempt to achieve this value
 
-	uint8_t						temp_residency; ///< how long have we been close to target temperature?
+	uint16_t					temp_residency; ///< how long have we been close to target temperature in temp ticks?
 
 	uint16_t					next_read_time; ///< how long until we can read this sensor again?
 } temp_sensors_runtime[NUM_TEMP_SENSORS];
@@ -270,7 +270,7 @@ void temp_sensor_tick() {
 			temp_sensors_runtime[i].last_read_temp = temp;
 
 			if (labs((int16_t)(temp - temp_sensors_runtime[i].target_temp)) < (TEMP_HYSTERESIS*4)) {
-				if (temp_sensors_runtime[i].temp_residency < TEMP_RESIDENCY_TIME)
+				if (temp_sensors_runtime[i].temp_residency < (TEMP_RESIDENCY_TIME*100))
 					temp_sensors_runtime[i].temp_residency++;
 			}
 			else {
@@ -291,7 +291,7 @@ uint8_t	temp_achieved() {
 	uint8_t all_ok = 255;
 
 	for (i = 0; i < NUM_TEMP_SENSORS; i++) {
-		if (temp_sensors_runtime[i].temp_residency < TEMP_RESIDENCY_TIME)
+		if (temp_sensors_runtime[i].temp_residency < (TEMP_RESIDENCY_TIME*100))
 			all_ok = 0;
 	}
 	return all_ok;