diff --git a/src/components/Blockly/blocks/sensebox-sensors.js b/src/components/Blockly/blocks/sensebox-sensors.js
index 12929a7..7a69df1 100644
--- a/src/components/Blockly/blocks/sensebox-sensors.js
+++ b/src/components/Blockly/blocks/sensebox-sensors.js
@@ -115,7 +115,7 @@ Blockly.Blocks["sensebox_sensor_sds011"] = {
       .appendField(Blockly.Msg.senseBox_sds011_dimension)
       .appendField(
         new Blockly.FieldDropdown(
-          selectedBoard().serial),
+          selectedBoard().serialSensors),
         "SERIAL"
       );
     this.setOutput(true, Types.DECIMAL.typeName);
diff --git a/src/components/Blockly/helpers/board.js b/src/components/Blockly/helpers/board.js
index 12dd18d..3150d67 100644
--- a/src/components/Blockly/helpers/board.js
+++ b/src/components/Blockly/helpers/board.js
@@ -46,9 +46,13 @@ const sensebox_mcu = {
     ["C6", "6"],
   ],
   serial: [
-    ["serial", "SerialUSB"],
-    ["serial_1", "Serial1"],
-    ["serial_2", "Serial2"],
+    ["SerialUSB", "SerialUSB"],
+    ["Serial1", "Serial1"],
+    ["Serial2", "Serial2"],
+  ],
+  serialSensors: [
+    ["Serial1", "Serial1"],
+    ["Serial2", "Serial2"],
   ],
   serialPins: {
     SerialUSB: [
@@ -161,8 +165,11 @@ const sensebox_mini = {
     ["IO2", "2"],
   ],
   serial: [
-    ["serial", "SerialUSB"],
-    ["serial_1", "Serial1"],
+    ["SerialUSB", "SerialUSB"],
+    ["Serial1", "Serial1"],
+  ],
+  serialSensors: [
+    ["Serial1", "Serial1"],
   ],
   serialPins: {
     SerialUSB: [