diff --git a/pype/settings/defaults/project_settings/deadline.json b/pype/settings/defaults/project_settings/deadline.json
index 6844979ddb..9e5665bee9 100644
--- a/pype/settings/defaults/project_settings/deadline.json
+++ b/pype/settings/defaults/project_settings/deadline.json
@@ -12,7 +12,7 @@
             "optional": false,
             "use_published": true,
             "priority": 50,
-            "Chunk Size": 10,
+            "chunk_size": 10,
             "primary_pool": "",
             "secondary_pool": "",
             "group": "",
@@ -23,7 +23,7 @@
             "optional": false,
             "use_published": true,
             "priority": 50,
-            "Chunk Size": 10000,
+            "chunk_size": 10000,
             "primary_pool": "",
             "secondary_pool": "",
             "group": "",
@@ -34,7 +34,7 @@
             "optional": false,
             "use_published": true,
             "priority": 50,
-            "Chunk Size": 10000,
+            "chunk_size": 10000,
             "primary_pool": "",
             "secondary_pool": "",
             "group": "",
diff --git a/pype/settings/entities/schemas/projects_schema/schema_project_deadline.json b/pype/settings/entities/schemas/projects_schema/schema_project_deadline.json
index ea76f4e62e..c103f9467c 100644
--- a/pype/settings/entities/schemas/projects_schema/schema_project_deadline.json
+++ b/pype/settings/entities/schemas/projects_schema/schema_project_deadline.json
@@ -84,7 +84,7 @@
                         },
                         {
                             "type": "number",
-                            "key": "Chunk Size",
+                            "key": "chunk_size",
                             "label": "Chunk Size"
                         },
                         {
@@ -138,7 +138,7 @@
                         },
                         {
                             "type": "number",
-                            "key": "Chunk Size",
+                            "key": "chunk_size",
                             "label": "Chunk Size"
                         },
                         {
@@ -192,7 +192,7 @@
                         },
                         {
                             "type": "number",
-                            "key": "Chunk Size",
+                            "key": "chunk_size",
                             "label": "Chunk Size"
                         },
                         {