diff --git a/packages/mosaic/framework/fleet/roster.schema.json b/packages/mosaic/framework/fleet/roster.schema.json
index b9fa9bb..5d96048 100644
--- a/packages/mosaic/framework/fleet/roster.schema.json
+++ b/packages/mosaic/framework/fleet/roster.schema.json
@@ -99,9 +99,6 @@
           "workingDirectory": {
             "type": "string"
           },
-          "workingDirectory": {
-            "type": "string"
-          },
           "model_hint": {
             "type": "string"
           },