diff --git a/roles/matrix-dimension/tasks/setup_dimension.yml b/roles/matrix-dimension/tasks/setup_dimension.yml
index 2437a5472..929521467 100644
--- a/roles/matrix-dimension/tasks/setup_dimension.yml
+++ b/roles/matrix-dimension/tasks/setup_dimension.yml
@@ -10,7 +10,7 @@
     state: directory
     mode: 0770
     owner: "{{ matrix_user_username }}"
-    group: "{{ matrix_dimension_user_gid }}"
+    group: "{{ matrix_user_username }}"
   when: matrix_dimension_enabled|bool
 
 - name: Ensure Dimension config installed
@@ -19,7 +19,7 @@
     dest: "{{ matrix_dimension_base_path }}/config.yaml"
     mode: 0640
     owner: "{{ matrix_user_username }}"
-    group: "{{ matrix_dimension_user_gid }}"
+    group: "{{ matrix_user_username }}"
   when: matrix_dimension_enabled|bool
 
 - name: Ensure Dimension image is pulled