diff --git a/layouts/redoc/single.html b/layouts/redoc/single.html
index 61d63a695..a04c7be94 100644
--- a/layouts/redoc/single.html
+++ b/layouts/redoc/single.html
@@ -19,7 +19,7 @@
 
   .menu-content {
     top: 0 !important;
-    height: 100% !important;
+    height: 100vh !important;
   }
   .bCOLCR {
     background: #e6e6e6;