diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index af38e7e85c..7939ecd3b8 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -2467,12 +2467,12 @@
                         }
                     }
                 },
-                "switch_extruder_extra_prime_distance": 
+                "switch_extruder_extra_prime_amount": 
                 {
-                    "label": "Nozzle Switch Extra Prime Distance",
+                    "label": "Nozzle Switch Extra Prime Amount",
                     "description": "Extra material to prime after nozzle switching.",
                     "type": "float",
-                    "unit": "mm",
+                    "unit": "mm³",
                     "default_value": 0,
                     "minimum_value_warning": "0",
                     "maximum_value_warning": "100",