diff --git a/resources/extruders/signal_pro_extruder_left.def.json b/resources/extruders/signal_pro_extruder_left.def.json
index 59b7ad79d8..160d396768 100644
--- a/resources/extruders/signal_pro_extruder_left.def.json
+++ b/resources/extruders/signal_pro_extruder_left.def.json
@@ -1,5 +1,4 @@
 {
-    "id": "signal_pro_extruder_left",
     "version": 2,
     "name": "Extruder 1",
     "inherits": "fdmextruder",
diff --git a/resources/extruders/signal_pro_extruder_right.def.json b/resources/extruders/signal_pro_extruder_right.def.json
index 219f4c02ad..cf3f54c13e 100644
--- a/resources/extruders/signal_pro_extruder_right.def.json
+++ b/resources/extruders/signal_pro_extruder_right.def.json
@@ -1,5 +1,4 @@
 {
-    "id": "signal_pro_extruder_right",
     "version": 2,
     "name": "Extruder 2",
     "inherits": "fdmextruder",