X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fchange-iterator.cc;fp=lily%2Fchange-iterator.cc;h=aa505f9fe104f83eee797770447e15fa10fc08c9;hb=0ac07f31e0f95fc18e5916ce756b9c746af7cc58;hp=0adac3b8b3808d424847b345cba9a706a1174ca1;hpb=2f1263e2ccdddcac2eb9f7d8ce2ed92867d3d160;p=lilypond.git

diff --git a/lily/change-iterator.cc b/lily/change-iterator.cc
index 0adac3b8b3..aa505f9fe1 100644
--- a/lily/change-iterator.cc
+++ b/lily/change-iterator.cc
@@ -26,7 +26,7 @@
 #include "warn.hh"
 
 void
-Change_iterator::error (string reason)
+Change_iterator::error (const string &reason)
 {
   string to_type = ly_symbol2string (get_music ()->get_property ("change-to-type"));
   string to_id = ly_scm2string (get_music ()->get_property ("change-to-id"));