diff --git a/src/base/NotationTypes.cpp b/src/base/NotationTypes.cpp
index ceddf79..c0ccc91 100644
--- a/src/base/NotationTypes.cpp
+++ b/src/base/NotationTypes.cpp
@@ -566,7 +566,7 @@ Key::KeyList Key::getKeys(bool minor)
     return result;
 }
 
-Key::Key Key::transpose(int pitchDelta, int heightDelta)
+Key Key::transpose(int pitchDelta, int heightDelta)
 {
     Pitch tonic(getTonicPitch());
     Pitch newTonic = tonic.transpose(*this, pitchDelta, heightDelta);