diff --git a/src/controllers/admin/admin_users_controller.rs b/src/controllers/admin/admin_users_controller.rs
index 621c911..f0d7531 100644
--- a/src/controllers/admin/admin_users_controller.rs
+++ b/src/controllers/admin/admin_users_controller.rs
@@ -8,8 +8,8 @@ use crate::constants::admin::AdminRole;
 use crate::data::admin_action_log::AdminAction;
 use crate::data::base_request_handler::BaseRequestHandler;
 use crate::data::http_request_handler::HttpRequestHandler;
+use crate::helpers::{account_helper, user_helper};
 use crate::helpers::admin_log_helper::log_admin_action;
-use crate::helpers::user_helper;
 use crate::routes::RequestResult;
 
 /// Search for user
@@ -35,4 +35,31 @@ pub fn get_single(r: &mut HttpRequestHandler) -> RequestResult {
                      AdminAction::AccessUserPage { user_id, user_name: user.full_name() })?;
 
     r.set_response(AdminUserInfoAPI::new(user))
+}
+
+/// Change the email address of a Comunic user
+pub fn change_email_address(r: &mut HttpRequestHandler) -> RequestResult {
+    r.check_admin_has_role(AdminRole::MANAGE_USERS)?;
+
+    let user_id = r.post_user_id("user_id")?;
+    let user = user_helper::find_user_by_id(&user_id)?;
+    let new_mail = r.post_email("new_mail")?;
+
+    // We check if the email address is already used
+    if user_helper::find_user_by_email(&new_mail).is_ok() {
+        r.bad_request(format!("The email address {} is already attributed!", new_mail))?;
+    }
+
+    // Do the update
+    account_helper::set_email(user_id, &new_mail)?;
+
+    log_admin_action(r.admin_id()?, &r.remote_ip(),
+                     AdminAction::ChangedEmailAddress {
+                         user_id,
+                         user_name: user.full_name(),
+                         old_mail: user.email,
+                         new_mail,
+                     })?;
+
+    r.ok()
 }
\ No newline at end of file
diff --git a/src/data/admin_action_log.rs b/src/data/admin_action_log.rs
index 3008460..24ac974 100644
--- a/src/data/admin_action_log.rs
+++ b/src/data/admin_action_log.rs
@@ -15,6 +15,7 @@ pub enum AdminAction {
     AddAdminRole { target: AdminID, role: String },
     RemoveAdminRole { target: AdminID, role: String },
     AccessUserPage { user_id: UserID, user_name: String },
+    ChangedEmailAddress { user_id: UserID, user_name: String, old_mail: String, new_mail: String },
     UnsupportedAction { raw_data: String },
 }
 
@@ -47,7 +48,11 @@ impl AdminAction {
             AdminAction::RemoveAdminRole { .. } =>
                 { "Removed a role from [admin]{target}[/admin] => {role}" }
 
-            AdminAction::AccessUserPage { .. } => { "Administrator accessed information of user #{user_id} '{user_name}'." }
+            AdminAction::AccessUserPage { .. } =>
+                { "Accessed information of user #{user_id} '{user_name}'." }
+
+            AdminAction::ChangedEmailAddress { .. } =>
+                { "Changed email address of user #{user_id} '{user_name}' from {old_mail} to {new_mail}" }
 
             AdminAction::UnsupportedAction { .. } => { "Unsupported action. Raw data: {raw_data}" }
         }
diff --git a/src/data/user.rs b/src/data/user.rs
index 361596c..ac0435f 100644
--- a/src/data/user.rs
+++ b/src/data/user.rs
@@ -8,7 +8,7 @@ use crate::utils::user_data_utils::user_data_url;
 ///! User information
 ///!
 ///! @author Pierre Hubert
-#[derive(Clone, PartialEq, Eq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug, Copy)]
 pub struct UserID(u64);
 
 impl UserID {
diff --git a/src/helpers/account_helper.rs b/src/helpers/account_helper.rs
index 6eada9a..2c20c1f 100644
--- a/src/helpers/account_helper.rs
+++ b/src/helpers/account_helper.rs
@@ -239,6 +239,14 @@ pub fn set_general(settings: &GeneralSettings) -> ResultBoxError {
         .exec()
 }
 
+/// Set the email address of a user
+pub fn set_email(user_id: UserID, new_mail: &str) -> Res {
+    database::UpdateInfo::new(USERS_TABLE)
+        .cond_user_id("ID", &user_id)
+        .set_str("mail", new_mail)
+        .exec()
+}
+
 /// Set new language settings
 pub fn set_language_settings(settings: &LangSettings) -> ResultBoxError {
     database::UpdateInfo::new(USERS_TABLE)
diff --git a/src/routes.rs b/src/routes.rs
index 0f1e6e1..9e282be 100644
--- a/src/routes.rs
+++ b/src/routes.rs
@@ -397,6 +397,7 @@ pub fn get_routes() -> Vec<Route> {
 
         // Admin users management controller
         Route::admin_post("/admin/users/search", Box::new(admin_users_controller::search)),
-        Route::admin_post("/admin/users/info", Box::new(admin_users_controller::get_single))
+        Route::admin_post("/admin/users/info", Box::new(admin_users_controller::get_single)),
+        Route::admin_post("/admin/users/change_email_address", Box::new(admin_users_controller::change_email_address)),
     ]
 }
\ No newline at end of file