diff --git a/src/mod/dynamicproxy/templates/hosterror.html b/src/mod/dynamicproxy/templates/hosterror.html
index 0325ac0..63b3666 100644
--- a/src/mod/dynamicproxy/templates/hosterror.html
+++ b/src/mod/dynamicproxy/templates/hosterror.html
@@ -123,7 +123,7 @@
             <div class="ui container">
                 <div class="ui stackable grid">
                     <div class="eight wide column">
-                        <h1>What happend?</h1>
+                        <h1>What happened?</h1>
                         <p>The reverse proxy target domain is not found.<br>For more information, see the error message on the reverse proxy terminal.</p>
                     </div>
                     <div class="eight wide column">
diff --git a/src/web/hosterror.html b/src/web/hosterror.html
index 0325ac0..63b3666 100644
--- a/src/web/hosterror.html
+++ b/src/web/hosterror.html
@@ -123,7 +123,7 @@
             <div class="ui container">
                 <div class="ui stackable grid">
                     <div class="eight wide column">
-                        <h1>What happend?</h1>
+                        <h1>What happened?</h1>
                         <p>The reverse proxy target domain is not found.<br>For more information, see the error message on the reverse proxy terminal.</p>
                     </div>
                     <div class="eight wide column">
diff --git a/src/web/rperror.html b/src/web/rperror.html
index 847f297..c8d1822 100644
--- a/src/web/rperror.html
+++ b/src/web/rperror.html
@@ -124,7 +124,7 @@
             <div class="ui container">
                 <div class="ui stackable grid">
                     <div class="eight wide column">
-                        <h1>What happend?</h1>
+                        <h1>What happened?</h1>
                         <p>The web server reported a bad gateway error.<br>For more information, see the error message on the reverse proxy terminal.</p>
                     </div>
                     <div class="eight wide column">