diff --git a/desktop/src/com/unciv/app/desktop/UiElementDocsWriter.kt b/desktop/src/com/unciv/app/desktop/UiElementDocsWriter.kt
index 0f8a1a53c4..92486d7b2a 100644
--- a/desktop/src/com/unciv/app/desktop/UiElementDocsWriter.kt
+++ b/desktop/src/com/unciv/app/desktop/UiElementDocsWriter.kt
@@ -51,7 +51,7 @@ class UiElementDocsWriter {
             yield(startMarker)
             yield("| Directory | Name | Default shape | Image |")
             yield("|---|:---:|:---:|---|")
-            yieldAll(elements.asSequence().sorted())    // FileTreeWalk guarantees no specific order as it uses File.listFiles
+            yieldAll(elements.asSequence().sorted().distinct())    // FileTreeWalk guarantees no specific order as it uses File.listFiles
             yield(endMarker)
             yieldAll(originalLines.subList(endIndex + 1, originalLines.size))
         }