diff --git a/tasmota/xdrv_27_shutter.ino b/tasmota/xdrv_27_shutter.ino
index fecfea22d..a0ff677ed 100644
--- a/tasmota/xdrv_27_shutter.ino
+++ b/tasmota/xdrv_27_shutter.ino
@@ -192,7 +192,7 @@ int32_t ShutterPercentToRealPosition(uint32_t percent, uint32_t index)
 uint8_t ShutterRealToPercentPosition(int32_t realpos, uint32_t index)
 {
 	if (Settings.shutter_set50percent[index] != 50) {
-		return (Settings.shuttercoeff[2][index] * 5 > realpos) ? SHT_DIV_ROUND(realpos/10, Settings.shuttercoeff[2][index]) : SHT_DIV_ROUND(realpos/10-Settings.shuttercoeff[0][index]*10, Settings.shuttercoeff[1][index]);
+		return (Settings.shuttercoeff[2][index] * 5 > realpos/10) ? SHT_DIV_ROUND(realpos/10, Settings.shuttercoeff[2][index]) : SHT_DIV_ROUND(realpos/10-Settings.shuttercoeff[0][index]*10, Settings.shuttercoeff[1][index]);
 	} else {
     uint16_t realpercent;