Index: subversion/libsvn_client/mergeinfo.c
===================================================================
--- subversion/libsvn_client/mergeinfo.c	(revision 28528)
+++ subversion/libsvn_client/mergeinfo.c	(working copy)
@@ -552,7 +552,7 @@
       /* If we need to adjust the paths in PARENT_MERGEINFO do it now. */
       if (path_suffix)
         adjust_mergeinfo_source_paths(path_tweaked_parent_mergeinfo,
-                                      path_suffix, child_mergeinfo,
+                                      path_suffix, parent_mergeinfo,
                                       subpool);
       else
         path_tweaked_parent_mergeinfo = parent_mergeinfo;