diff --git a/src/data/app_config.rs b/src/data/app_config.rs
index a70309d..461f009 100644
--- a/src/data/app_config.rs
+++ b/src/data/app_config.rs
@@ -95,6 +95,12 @@ impl AppConfig {
     pub fn domain_name(&self) -> &str {
         self.website_origin.split('/').nth(2).unwrap_or(APP_NAME)
     }
+
+    /// Get the domain without the port
+    pub fn domain_name_without_port(&self) -> &str {
+        let domain = self.domain_name();
+        domain.split_once(':').map(|i| i.0).unwrap_or(domain)
+    }
 }
 
 #[cfg(test)]
diff --git a/src/data/totp_key.rs b/src/data/totp_key.rs
index 53adf13..80348e5 100644
--- a/src/data/totp_key.rs
+++ b/src/data/totp_key.rs
@@ -40,10 +40,10 @@ impl TotpKey {
     pub fn url_for_user(&self, u: &User, conf: &AppConfig) -> String {
         format!(
             "otpauth://totp/{}:{}?secret={}&issuer={}&algorithm=SHA1&digits={}&period={}",
-            urlencoding::encode(conf.domain_name()),
+            urlencoding::encode(conf.domain_name_without_port()),
             urlencoding::encode(&u.username),
             self.encoded,
-            urlencoding::encode(conf.domain_name()),
+            urlencoding::encode(conf.domain_name_without_port()),
             NUM_DIGITS,
             PERIOD,
         )
@@ -53,7 +53,7 @@ impl TotpKey {
     pub fn account_name(&self, u: &User, conf: &AppConfig) -> String {
         format!(
             "{}:{}",
-            urlencoding::encode(conf.domain_name()),
+            urlencoding::encode(conf.domain_name_without_port()),
             urlencoding::encode(&u.username)
         )
     }