diff --git a/tasmota/xsns_72_mcp9808.ino b/tasmota/xsns_72_mcp9808.ino
index 0d757c684..8af129f97 100644
--- a/tasmota/xsns_72_mcp9808.ino
+++ b/tasmota/xsns_72_mcp9808.ino
@@ -78,10 +78,10 @@ void MCP9808Show(bool json) {
     char temperature[33];
     dtostrfd(mcp9808_sensors[i].temperature, Settings.flag2.temperature_resolution, temperature);
 
-    char sensor_name[10];
+    char sensor_name[11];
     strlcpy(sensor_name, mcp9808_cfg.types, sizeof(sensor_name));
     if (mcp9808_cfg.count > 1) {
-      snprintf_P(sensor_name, sizeof(sensor_name), PSTR("%s%c%d"), sensor_name, IndexSeparator(), i +1); // MCP9808-1
+      snprintf_P(sensor_name, sizeof(sensor_name), PSTR("%s%c%02X"), sensor_name, IndexSeparator(), mcp9808_sensors[i].address); // MCP9808-18, MCP9808-1A  etc.
     }
 
     if (json) {
@@ -133,4 +133,4 @@ bool Xsns72(uint8_t function)
 }
 
 #endif  // USE_MCP9808
-#endif  // USE_I2C
\ No newline at end of file
+#endif  // USE_I2C