diff --git a/admin_interface/static/admin_interface/css/admin-interface.css b/admin_interface/static/admin_interface/css/admin-interface.css
index 2ad4ec6..618a34b 100644
--- a/admin_interface/static/admin_interface/css/admin-interface.css
+++ b/admin_interface/static/admin_interface/css/admin-interface.css
@@ -137,7 +137,7 @@
 
 .admin-interface #header #user-tools a:hover,
 .admin-interface #header #user-tools a:active {
-    color: var(--admin-interface-header-link_hover-color);
+    color: var(--admin-interface-header-link-hover-color);
     border-bottom-color: rgba(255, 255, 255, 0.5);
 }
 
diff --git a/admin_interface/templates/admin/base_site.html b/admin_interface/templates/admin/base_site.html
index 86d5399..da7e7f8 100644
--- a/admin_interface/templates/admin/base_site.html
+++ b/admin_interface/templates/admin/base_site.html
@@ -19,7 +19,7 @@
             --admin-interface-header-background-color: {{ theme.css_header_background_color }};
             --admin-interface-header-text-color: {{ theme.css_header_text_color }};
             --admin-interface-header-link-color: {{ theme.css_header_link_color }};
-            --admin-interface-header-link_hover-color: {{ theme.css_header_link_hover_color }};
+            --admin-interface-header-link-hover-color: {{ theme.css_header_link_hover_color }};
             --admin-interface-module-background-color: {{ theme.css_module_background_color }};
             --admin-interface-module-background-selected-color: {{ theme.css_module_background_selected_color }};
             --admin-interface-module-text-color: {{ theme.css_module_text_color }};