diff --git a/roles/matrix-bot-postmoogle/defaults/main.yml b/roles/matrix-bot-postmoogle/defaults/main.yml
index 5272e2f2..bcd401e7 100644
--- a/roles/matrix-bot-postmoogle/defaults/main.yml
+++ b/roles/matrix-bot-postmoogle/defaults/main.yml
@@ -84,6 +84,15 @@ matrix_bot_postmoogle_noowner: false
 # Allow Postmoogle use by users over federation
 matrix_bot_postmoogle_federation: false
 
+# A list of whitelisted users allowed to use the bridge.
+# If not defined, everyone is allowed.
+# Example set of rules:
+# - @someone:example.com
+# - @another:example.com
+# - @bot.*:example.com
+# - @*:another.com
+matrix_bot_postmoogle_users: []
+
 # Sentry DSN
 matrix_bot_postmoogle_sentry: ''
 
diff --git a/roles/matrix-bot-postmoogle/templates/env.j2 b/roles/matrix-bot-postmoogle/templates/env.j2
index 930681d8..0bd33752 100644
--- a/roles/matrix-bot-postmoogle/templates/env.j2
+++ b/roles/matrix-bot-postmoogle/templates/env.j2
@@ -12,5 +12,6 @@ POSTMOOGLE_LOGLEVEL={{ matrix_bot_postmoogle_loglevel }}
 POSTMOOGLE_NOENCRYPTION={{ matrix_bot_postmoogle_noencryption }}
 POSTMOOGLE_NOOWNER={{ matrix_bot_postmoogle_noowner }}
 POSTMOOGLE_FEDERATION={{ matrix_bot_postmoogle_federation }}
+POSTMOOGLE_USERS={{ matrix_bot_postmoogle_users | default('') | join(' ') }}
 
 {{ matrix_bot_postmoogle_environment_variables_extension }}