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-rw-r--r--src/audioinputengine.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/audioinputengine.h b/src/audioinputengine.h
index d7ac9c9..105db49 100644
--- a/src/audioinputengine.h
+++ b/src/audioinputengine.h
@@ -40,7 +40,7 @@ public:
virtual bool isMidiEngine() { return false; }
- virtual bool init(Instruments& instruments) = 0;
+ virtual bool init(const Instruments& instruments) = 0;
virtual void setParm(const std::string& parm, const std::string& value) = 0;