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-rw-r--r--libs/ardour/io.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/libs/ardour/io.cc b/libs/ardour/io.cc
index 9fa6c7085d..79ee78d8a5 100644
--- a/libs/ardour/io.cc
+++ b/libs/ardour/io.cc
@@ -1674,7 +1674,7 @@ IO::collect_input (BufferSet& bufs, pframes_t nframes, ChanCount offset)
}
for ( ; i != _ports.end(*t); ++i, ++b) {
- Buffer& bb (i->get_buffer (nframes));
+ const Buffer& bb (i->get_buffer (nframes));
b->read_from (bb, nframes);
}
}