diff --git a/test/algorithms/difference1.cpp b/test/algorithms/difference1.cpp
index ea7bc525f..7556b6c37 100644
--- a/test/algorithms/difference1.cpp
+++ b/test/algorithms/difference1.cpp
@@ -408,7 +408,7 @@ BOOST_AUTO_TEST_CASE( test_difference_multilinestring_multilinestring )
                        (-1 -1,0 0,9 0,11 10,12 10,13 0.3,14 0.4,15 0.5),\
                        (10 20,15 10,25 10,30 15))"),
          from_wkt<ML>("MULTILINESTRING((9 0,10 0,13 0.3),(15 0.5,20 1),\
-                      (4 0,7 0),(10 10,11 10),(12 10,15 10),(20 10,30 20))"),
+                      (10 10,11 10),(12 10,15 10),(20 10,30 20))"),
          "mlmldf06.svg"
         );