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-rw-r--r--libs/ardour/ardour/slave.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libs/ardour/ardour/slave.h b/libs/ardour/ardour/slave.h
index 62a52155c4..b01722e306 100644
--- a/libs/ardour/ardour/slave.h
+++ b/libs/ardour/ardour/slave.h
@@ -171,6 +171,7 @@ class Slave {
/// We need this wrapper for testability, it's just too hard to mock up a session class
class ISlaveSessionProxy {
public:
+ virtual ~ISlaveSessionProxy() {}
virtual TempoMap& tempo_map() const { return *((TempoMap *) 0); }
virtual nframes_t frame_rate() const { return 0; }
virtual nframes64_t audible_frame () const { return 0; }