diff --git a/sonoff/xsns_20_novasds.ino b/sonoff/xsns_20_novasds.ino
index 2bce13e2a..b6bd4a2c0 100644
--- a/sonoff/xsns_20_novasds.ino
+++ b/sonoff/xsns_20_novasds.ino
@@ -60,17 +60,17 @@ void NovaSdsSetWorkPeriod()
 
   NovaSdsSerial->flush();
 
-	while (NovaSdsSerial->available() > 0) {
-		NovaSdsSerial->read();
-	}
+  while (NovaSdsSerial->available() > 0) {
+    NovaSdsSerial->read();
+  }
 
 	NovaSdsSerial->write(novasds_setquerymode, sizeof(novasds_setquerymode));
 
   NovaSdsSerial->flush();
 
-	while (NovaSdsSerial->available() > 0) {
-		NovaSdsSerial->read();
-	}
+  while (NovaSdsSerial->available() > 0) {
+    NovaSdsSerial->read();
+  }
 }