Index: /trunk/src/org/openstreetmap/josm/io/session/SessionReader.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/io/session/SessionReader.java	(revision 4701)
+++ /trunk/src/org/openstreetmap/josm/io/session/SessionReader.java	(revision 4702)
@@ -348,5 +348,5 @@
                         dialog.show(
                             tr("Unable to load layer"),
-                            tr("Cannot load layer {0} because it depends no layer {1} which has been skipped.", idx, d),
+                            tr("Cannot load layer {0} because it depends on layer {1} which has been skipped.", idx, d),
                             JOptionPane.WARNING_MESSAGE,
                             progressMonitor