X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbeam.cc;h=206f6e9f4dfb4ff9f5a442f19596f80e17cef7e9;hb=fa038b9595a1578f62430d8ed41bf2bbba8116e9;hp=c18c3d8430be70e4b0ccccaf4584283aef3ad913;hpb=d4e42a07c4d5c144c8cbeec50712c0da4815f0f3;p=lilypond.git

diff --git a/lily/beam.cc b/lily/beam.cc
index c18c3d8430..206f6e9f4d 100644
--- a/lily/beam.cc
+++ b/lily/beam.cc
@@ -1232,7 +1232,7 @@ Beam::rest_collision_callback (SCM smob, SCM prev_offset)
     return scm_from_double (0.0);
   Grob *beam = unsmob<Grob> (stem->get_object ("beam"));
   if (!beam
-      || !Beam::has_interface (beam)
+      || !has_interface<Beam> (beam)
       || !Beam::normal_stem_count (beam))
     return scm_from_double (0.0);