diff --git a/src/config.rs b/src/config.rs
index 68a6811c..61700c8f 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -141,6 +141,8 @@ macro_rules! make_config {
                 )+)+
                 config.domain_set = _domain_set;
 
+                config.domain = config.domain.trim_end_matches('/').to_string();
+
                 config.signups_domains_whitelist = config.signups_domains_whitelist.trim().to_lowercase();
                 config.org_creation_users = config.org_creation_users.trim().to_lowercase();