diff --git a/modules/ui/cultures-editor.js b/modules/ui/cultures-editor.js
index 69cbf86e..1775e51a 100644
--- a/modules/ui/cultures-editor.js
+++ b/modules/ui/cultures-editor.js
@@ -122,6 +122,7 @@ function editCultures() {
     body.querySelectorAll("div > input.statePower").forEach(el => el.addEventListener("input", cultureChangeExpansionism));
     body.querySelectorAll("div > select.cultureType").forEach(el => el.addEventListener("change", cultureChangeType));
     body.querySelectorAll("div > select.cultureBase").forEach(el => el.addEventListener("click", updateBaseOptions));
+    body.querySelectorAll("div > select.cultureBase").forEach(el => el.addEventListener("change", cultureUpdateBase));
     body.querySelectorAll("div > span.icon-arrows-cw").forEach(el => el.addEventListener("click", cultureRegenerateBurgs));
     body.querySelectorAll("div > span.icon-trash-empty").forEach(el => el.addEventListener("click", cultureRemove));
 
@@ -193,6 +194,16 @@ function editCultures() {
     nameBases.forEach((b, i) => this.options.add(new Option(b.name, i, false, i === v)));
   }
 
+  function cultureUpdateBase() {
+    const culture = +this.parentNode.dataset.id;
+    const v = +this.value;
+    pack.cultures.forEach(el => {
+      if (el.i === culture) {
+        el.base = v;
+      }
+    });
+  }
+
   function cultureRegenerateBurgs() {
     if (customization === 4) return;
     const culture = +this.parentNode.dataset.id;
@@ -432,4 +443,4 @@ function editCultures() {
     exitCulturesManualAssignment();
   }
 
-}
\ No newline at end of file
+}