Index: /trunk/src/org/openstreetmap/josm/actions/SplitWayAction.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/actions/SplitWayAction.java	(revision 9871)
+++ /trunk/src/org/openstreetmap/josm/actions/SplitWayAction.java	(revision 9872)
@@ -741,6 +741,6 @@
                 new SequenceCommand(
                         /* for correct i18n of plural forms - see #9110 */
-                        trn("Split way {0} into {1} part", "Split way {0} into {1} parts", newWays.size(),
-                                way.getDisplayName(DefaultNameFormatter.getInstance()), newWays.size()),
+                        trn("Split way {0} into {1} part", "Split way {0} into {1} parts", newWays.size() + 1,
+                                way.getDisplayName(DefaultNameFormatter.getInstance()), newWays.size() + 1),
                         commandList
                         ),