diff --git a/plugins/3MFReader/__init__.py b/plugins/3MFReader/__init__.py
index d3863aa90f..610165f7a0 100644
--- a/plugins/3MFReader/__init__.py
+++ b/plugins/3MFReader/__init__.py
@@ -15,10 +15,12 @@ def getMetaData():
             "description": catalog.i18nc("@info:whatsthis", "Provides support for reading 3MF files."),
             "api": 2
         },
-        "mesh_reader": {
-            "extension": "3mf",
-            "description": catalog.i18nc("@item:inlistbox", "3MF File")
-        }
+        "mesh_reader": [
+            {
+                "extension": "3mf",
+                "description": catalog.i18nc("@item:inlistbox", "3MF File")
+            }
+        ]
     }
 
 def register(app):
diff --git a/plugins/GCodeReader/__init__.py b/plugins/GCodeReader/__init__.py
index 5b563867f2..c4ccddcc70 100644
--- a/plugins/GCodeReader/__init__.py
+++ b/plugins/GCodeReader/__init__.py
@@ -15,10 +15,12 @@ def getMetaData():
             "description": catalog.i18nc("@info:whatsthis", "Provides support for reading GCode files."),
             "api": 2
         },
-        "mesh_reader": {
-            "extension": "gcode",
-            "description": catalog.i18nc("@item:inlistbox", "Gcode File")
-        }
+        "mesh_reader": [
+            {
+                "extension": "gcode",
+                "description": catalog.i18nc("@item:inlistbox", "Gcode File")
+            }
+        ]
     }
 
 def register(app):