diff --git a/position/src/move_generator/tests/peterellisjones.rs b/position/src/move_generator/tests/peterellisjones.rs
index 52b0269..3828970 100644
--- a/position/src/move_generator/tests/peterellisjones.rs
+++ b/position/src/move_generator/tests/peterellisjones.rs
@@ -214,12 +214,12 @@ fn en_passant_discovered_check() {
 
     let generated_moves = pos.moves().iter().collect::<HashSet<_>>();
 
+    let unexpected_move = MoveBuilder::new(piece!(Black Pawn), Square::E4, Square::D3)
+        .capturing_en_passant(piece!(White Pawn on D4))
+        .build();
+
     assert!(
-        generated_moves.contains(
-            &MoveBuilder::new(piece!(Black Pawn), Square::E4, Square::D3)
-                .capturing_en_passant(piece!(White Pawn on D4))
-                .build()
-        ),
+        !generated_moves.contains(&unexpected_move),
         "Valid moves: {:?}",
         formatted_move_list!(generated_moves, pos)
     );