diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index 748431bbfa..52b21ae5b2 100644
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -6422,12 +6422,12 @@ Route::set_loop (Location* l)
 
 static inline MonitorState
 operator| (const MonitorState& a, const MonitorState& b) {
-  return static_cast<MonitorState> (static_cast <int>(a) | static_cast<int> (b));
+	return static_cast<MonitorState> (static_cast <int>(a) | static_cast<int> (b));
 }
 
 static inline MonitorState
 operator& (const MonitorState& a, const MonitorState& b) {
-  return static_cast<MonitorState> (static_cast <int>(a) & static_cast<int> (b));
+	return static_cast<MonitorState> (static_cast <int>(a) & static_cast<int> (b));
 }
 
 MonitorState