diff --git a/guacamole/src/main/webapp/app/form/templates/terminalColorSchemeField.html b/guacamole/src/main/webapp/app/form/templates/terminalColorSchemeField.html
index 89b79e6d7..a8425e41e 100644
--- a/guacamole/src/main/webapp/app/form/templates/terminalColorSchemeField.html
+++ b/guacamole/src/main/webapp/app/form/templates/terminalColorSchemeField.html
@@ -50,11 +50,11 @@
     </div>
 
     <!-- Show/hide details -->
-    <h3 class="custom-color-scheme-details-header" ng-show="isCustom()">
+    <h4 class="custom-color-scheme-details-header" ng-show="isCustom()">
         {{'COLOR_SCHEME.SECTION_HEADER_DETAILS' | translate}}
         <a class="custom-color-scheme-show-details" ng-click="showDetails()">{{'COLOR_SCHEME.ACTION_SHOW_DETAILS' | translate}}</a>
         <a class="custom-color-scheme-hide-details" ng-click="hideDetails()">{{'COLOR_SCHEME.ACTION_HIDE_DETAILS' | translate}}</a>
-    </h3>
+    </h4>
 
     <!-- Custom color scheme details (internal representation -->
     <textarea class="custom-color-scheme-details" spellcheck="false"