diff --git a/ui/src/keyboardLayouts/es_ES.ts b/ui/src/keyboardLayouts/es_ES.ts
index 9a53d93..9e34bea 100644
--- a/ui/src/keyboardLayouts/es_ES.ts
+++ b/ui/src/keyboardLayouts/es_ES.ts
@@ -89,6 +89,7 @@ export const chars = {
   m: { key: "KeyM" },
   n: { key: "KeyN" },
   o: { key: "KeyO" },
+  "ö": { key: "KeyO", accentKey: keyTrema },
   "ó": { key: "KeyO", accentKey: keyAcute },
   "ô": { key: "KeyO", accentKey: keyHat },
   "ò": { key: "KeyO", accentKey: keyGrave },
@@ -99,6 +100,7 @@ export const chars = {
   s: { key: "KeyS" },
   t: { key: "KeyT" },
   u: { key: "KeyU" },
+  "ü": { key: "KeyU", accentKey: keyTrema },
   "ú": { key: "KeyU", accentKey: keyAcute },
   "û": { key: "KeyU", accentKey: keyHat },
   "ù": { key: "KeyU", accentKey: keyGrave },