diff --git a/templates/custom/header.tmpl b/templates/custom/header.tmpl
index 70ff301..0d7d750 100644
--- a/templates/custom/header.tmpl
+++ b/templates/custom/header.tmpl
@@ -206,6 +206,9 @@
     --min-height-textarea: 300px;
   }
 
+  form[action="/blender/blender/issues/new"] .combo-markdown-editor textarea.markdown-text-editor {
+    max-height: calc(100vh - 132px) !important;
+  }
 </style>
 
 <script defer data-domain="projects.blender.org" src="https://analytics.blender.org/js/script.js"></script>