diff --git a/locale/pl/nouns/iksatywy.vue b/locale/pl/nouns/iksatywy.vue
index cd03f8277..e090a4da2 100644
--- a/locale/pl/nouns/iksatywy.vue
+++ b/locale/pl/nouns/iksatywy.vue
@@ -27,6 +27,23 @@ const xDeclension = new NounDeclension({
     W_pl: 'xx',
 });
 
+const xTkaDeclension = new NounDeclension({
+    M: 'txa',
+    D: 'txi',
+    C: 'txe',
+    B: 'txę',
+    N: 'txą',
+    Msc: 'txe',
+    W: 'tx',
+    M_pl: 'txx',
+    D_pl: 'txx',
+    C_pl: 'txx',
+    B_pl: 'txx',
+    N_pl: 'txx',
+    Msc_pl: 'txx',
+    W_pl: 'txx',
+});
+
 const { $translator: translator } = useNuxtApp();
 const config = useConfig();
 
@@ -45,7 +62,7 @@ const xNouns = [
         mascPl: 'astronauci',
         femPl: 'astronautki',
         neutrPl: 'astronautxx',
-        declension: xDeclension,
+        declension: xTkaDeclension,
     }),
     new Noun(config, {
         id: 'Europejczyk',