diff --git a/simpleclock.ino b/simpleclock.ino
index db3512b..5936d0e 100644
--- a/simpleclock.ino
+++ b/simpleclock.ino
@@ -39,16 +39,15 @@ OF SUCH DAMAGE.
 
 DS1307 clock;
 SevSeg Display;
-bool dot = true;
-float number;
 
 unsigned long currentMillis;
 unsigned long previousMillis = 0;
 const long interval = 500;
-
 const int hrs_btn = A0;
 const int min_btn = A1;
-
+bool dot = true;
+uint8_t minutes;
+uint8_t hours;
 
 void setup()
 {
@@ -59,7 +58,9 @@ void setup()
 	byte segmentPins[] = {2, 3, 4, 5, 6, 7, 8, 13};
 	bool resistorsOnSegments = true;   // 8 resistors, 330 Ohms each
 	bool updateWithDelays = false;     // Default. Recommended
-	bool leadingZeros = false;
+	/* without it there is visual bug at 0 o'clock, and in current version of
+	 * SevSeg' setChars() does not dots at all */
+	bool leadingZeros = true;          
 
 	Display.begin(hardwareConfig, numDigits, digitPins, segmentPins,
                       resistorsOnSegments, updateWithDelays, leadingZeros);
@@ -88,8 +89,6 @@ void setup()
 void loop()
 {
 	unsigned long currentMillis = millis();
-	uint8_t minutes;
-	uint8_t hours;
 
 	if (currentMillis - previousMillis >= interval)
 	{
@@ -127,12 +126,9 @@ void loop()
 
 	// make blinking dot
 	if (dot == true) {
-		number = clock.hour * 100 + clock.minute;
-		number = number / 100;
-		Display.setNumber(number, 2);
+		Display.setNumber((clock.hour * 100 + clock.minute), 2);
 	} else {
-		number = clock.hour * 100 + clock.minute;
-		Display.setNumber(number);
+		Display.setNumber((clock.hour * 100 + clock.minute));
 	}
 
 	Display.refreshDisplay();