diff --git a/test-kit/src/test/scala/format/FenTest.scala b/test-kit/src/test/scala/format/FenTest.scala
index 7d53c470e..ac4bf42fc 100644
--- a/test-kit/src/test/scala/format/FenTest.scala
+++ b/test-kit/src/test/scala/format/FenTest.scala
@@ -60,3 +60,8 @@ class FenTest extends ChessTest:
     val fen  = Fen.Epd("4k3/8/8/8/8/8/8/4K1RR w K - 0 1")
     val situation = Fen.read(Standard, fen).get
     assertEquals(situation.legalMoves.filter(_.castles), Nil)
+
+  test("catsling rights with 2 rooks on the same side"):
+    val fen  = Fen.Epd("4k3/8/8/8/8/8/8/RR2K3 w Q - 0 1")
+    val situation = Fen.read(Standard, fen).get
+    assertEquals(situation.legalMoves.filter(_.castles), Nil)