1 files changed, 4 insertions, 0 deletions
diff --git a/src/client/util/ProsemirrorExampleTransfer.ts b/src/client/util/ProsemirrorExampleTransfer.ts
index fa9e2e5af..c38f84551 100644
--- a/src/client/util/ProsemirrorExampleTransfer.ts
+++ b/src/client/util/ProsemirrorExampleTransfer.ts
@@ -47,6 +47,10 @@ export default function buildKeymap<S extends Schema<any>>(schema: S, mapKeys?:
         bind("Mod-i", toggleMark(type));
         bind("Mod-I", toggleMark(type));
     }
+    if (type = schema.marks.underline) {
+        bind("Mod-u", toggleMark(type));
+        bind("Mod-U", toggleMark(type));
+    }
     if (type = schema.marks.code) {
         bind("Mod-`", toggleMark(type));
     }