diff --git a/openapi/machine-api.json b/openapi/machine-api.json
index be38bde99..caae17f51 100644
--- a/openapi/machine-api.json
+++ b/openapi/machine-api.json
@@ -464,6 +464,54 @@
       "Print": {
         "description": "A print command.",
         "oneOf": [
+          {
+            "additionalProperties": true,
+            "description": "Ams control.",
+            "properties": {
+              "command": {
+                "enum": [
+                  "ams_control"
+                ],
+                "type": "string"
+              },
+              "param": {
+                "description": "The param.",
+                "nullable": true,
+                "type": "string"
+              },
+              "reason": {
+                "allOf": [
+                  {
+                    "$ref": "#/components/schemas/Reason"
+                  }
+                ],
+                "description": "The reason for the message."
+              },
+              "result": {
+                "allOf": [
+                  {
+                    "$ref": "#/components/schemas/Result"
+                  }
+                ],
+                "description": "The result of the command."
+              },
+              "sequence_id": {
+                "allOf": [
+                  {
+                    "$ref": "#/components/schemas/SequenceId"
+                  }
+                ],
+                "description": "The sequence id."
+              }
+            },
+            "required": [
+              "command",
+              "reason",
+              "result",
+              "sequence_id"
+            ],
+            "type": "object"
+          },
           {
             "additionalProperties": true,
             "description": "The status of the print.",
@@ -842,8 +890,30 @@
                 ],
                 "type": "string"
               },
-              "line": {
+              "param": {
                 "description": "The gcode line.",
+                "nullable": true,
+                "type": "string"
+              },
+              "reason": {
+                "allOf": [
+                  {
+                    "$ref": "#/components/schemas/Reason"
+                  }
+                ],
+                "description": "The reason for the message."
+              },
+              "result": {
+                "allOf": [
+                  {
+                    "$ref": "#/components/schemas/Result"
+                  }
+                ],
+                "description": "The result of the command."
+              },
+              "return_code": {
+                "description": "The return code.",
+                "nullable": true,
                 "type": "string"
               },
               "sequence_id": {
@@ -853,11 +923,18 @@
                   }
                 ],
                 "description": "The sequence id."
+              },
+              "source": {
+                "description": "The source.",
+                "format": "int64",
+                "nullable": true,
+                "type": "integer"
               }
             },
             "required": [
               "command",
-              "line",
+              "reason",
+              "result",
               "sequence_id"
             ],
             "type": "object"
@@ -874,6 +951,7 @@
               },
               "gcode_file": {
                 "description": "The gcode file.",
+                "nullable": true,
                 "type": "string"
               },
               "profile_id": {
@@ -907,7 +985,6 @@
             },
             "required": [
               "command",
-              "gcode_file",
               "profile_id",
               "project_id",
               "sequence_id",