diff --git a/roles/matrix-dimension/defaults/main.yml b/roles/matrix-dimension/defaults/main.yml
index 43841fee4..211e89882 100644
--- a/roles/matrix-dimension/defaults/main.yml
+++ b/roles/matrix-dimension/defaults/main.yml
@@ -31,6 +31,7 @@ matrix_dimension_integrations_jitsi_widget_url: "https://{{ matrix_server_fqn_di
 # For a more advanced customization, you can extend the default (see `matrix_dimension_configuration_extension_yaml`)
 # or completely replace this variable with your own template.
 matrix_dimension_configuration_yaml: |
+  #jinja2: lstrip_blocks: True
   # The web settings for the service (API and UI).
   # It is best to have this run on localhost and use a reverse proxy to access Dimension.
   web:
@@ -125,5 +126,3 @@ matrix_dimension_configuration_extension_yaml: |
 # Holds the final Dimension configuration (a combination of the default and its extension).
 # You most likely don't need to touch this variable. Instead, see `matrix_dimension_configuration_yaml`.
 matrix_dimension_configuration: "{{ matrix_dimension_configuration_yaml|from_yaml|combine(matrix_dimension_configuration_extension, recursive=True) }}"
-
-
diff --git a/roles/matrix-mxisd/defaults/main.yml b/roles/matrix-mxisd/defaults/main.yml
index caaccfd0a..4b2b22ff1 100644
--- a/roles/matrix-mxisd/defaults/main.yml
+++ b/roles/matrix-mxisd/defaults/main.yml
@@ -64,6 +64,7 @@ matrix_mxisd_self_check_validate_certificates: true
 # For a more advanced customization, you can extend the default (see `matrix_mxisd_configuration_extension_yaml`)
 # or completely replace this variable with your own template.
 matrix_mxisd_configuration_yaml: |
+  #jinja2: lstrip_blocks: True
   matrix:
     domain: {{ matrix_domain }}
 
diff --git a/roles/matrix-synapse/defaults/main.yml b/roles/matrix-synapse/defaults/main.yml
index ee454b5a7..813d5a0fd 100644
--- a/roles/matrix-synapse/defaults/main.yml
+++ b/roles/matrix-synapse/defaults/main.yml
@@ -267,6 +267,7 @@ matrix_appservice_irc_docker_image: "tedomum/matrix-appservice-irc:latest"
 matrix_appservice_irc_base_path: "{{ matrix_base_data_path }}/appservice-irc"
 
 matrix_appservice_irc_configuration_yaml: |
+  #jinja2: lstrip_blocks: True
   homeserver:
     url: "https://{{ matrix_server_fqn_matrix }}"
     domain: "{{ matrix_domain }}"