diff --git a/src/effects/Effect.cpp b/src/effects/Effect.cpp
index f65764db5..7a97bc8d5 100644
--- a/src/effects/Effect.cpp
+++ b/src/effects/Effect.cpp
@@ -763,7 +763,6 @@ void Effect::SetDuration(double seconds)
    }
 
    mDuration = seconds;
-   mT1 = mT0 + mDuration;
 
    mIsSelection = false;
 
diff --git a/src/effects/Generator.h b/src/effects/Generator.h
index f6094f533..80ffc12be 100644
--- a/src/effects/Generator.h
+++ b/src/effects/Generator.h
@@ -69,7 +69,7 @@ protected:
                               sampleCount block) = 0;
 
    // Generate the track, one block at a time, & adding the results to tmp
-   bool GenerateTrack(WaveTrack *tmp, const WaveTrack &track, int ntrack);
+   bool GenerateTrack(WaveTrack *tmp, const WaveTrack &track, int ntrack) override;
 };
 
 #endif