diff --git a/libs/surfaces/mackie/mcp_buttons.cc b/libs/surfaces/mackie/mcp_buttons.cc
index 78d9596a9f..bff011668f 100644
--- a/libs/surfaces/mackie/mcp_buttons.cc
+++ b/libs/surfaces/mackie/mcp_buttons.cc
@@ -746,7 +746,10 @@ MackieControlProtocol::flip_press (Button &)
 		}
 		return ((_flip_mode != Normal) ? on : off);
 	}
+
+	return none;
 }
+
 LedState
 MackieControlProtocol::flip_release (Button &)
 {