diff --git a/roles/custom/matrix-static-files/defaults/main.yml b/roles/custom/matrix-static-files/defaults/main.yml
index 77340c7b9..53c461dcc 100644
--- a/roles/custom/matrix-static-files/defaults/main.yml
+++ b/roles/custom/matrix-static-files/defaults/main.yml
@@ -218,9 +218,9 @@ matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_enab
 
 # Controls the org.matrix.msc4143.rtc_foci property in the /.well-known/matrix/client file.
 # See `matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_enabled`
-matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci: "{{ matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_auto | combine(matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_custom, recursive=True) }}"
-matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_auto: {}
-matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_custom: {}
+matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci: "{{ matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_auto+ matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_custom }}"
+matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_auto: []
+matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_custom: []
 
 # Default /.well-known/matrix/client configuration template which covers the generic use case.
 # You can customize it by controlling the various variables inside it.