diff --git a/tasmota/tasmota_xsns_sensor/xsns_05_ds18x20.ino b/tasmota/tasmota_xsns_sensor/xsns_05_ds18x20.ino
index 8f130d93a..bbc71b1a5 100644
--- a/tasmota/tasmota_xsns_sensor/xsns_05_ds18x20.ino
+++ b/tasmota/tasmota_xsns_sensor/xsns_05_ds18x20.ino
@@ -319,9 +319,9 @@ void Ds18x20Init(void) {
 
   uint64_t ids[DS18X20_MAX_SENSORS];
   DS18X20Data.sensors = 0;
-  ds18x20_ngpio=0;
 
 #ifdef DS18x20_MULTI_GPIOs
+  ds18x20_ngpio=0;
 uint8_t pins;
   for (pins = 0; pins < MAX_DSB; pins++) {
     if (PinUsed(GPIO_DSB, pins)) {