diff --git a/libs/evoral/evoral/MIDIEvent.hpp b/libs/evoral/evoral/MIDIEvent.hpp
index fee07a41d7..c06a323d73 100644
--- a/libs/evoral/evoral/MIDIEvent.hpp
+++ b/libs/evoral/evoral/MIDIEvent.hpp
@@ -69,8 +69,8 @@ struct MIDIEvent : public Event<Time> {
 	inline bool     is_channel_pressure()   const { return (type() == MIDI_CMD_CHANNEL_PRESSURE); }
 	inline uint8_t  note()                  const { return (this->_buf[1]); }
 	inline uint8_t  velocity()              const { return (this->_buf[2]); }
-        inline void     set_velocity(uint8_t value)   { this->_buf[2] = value; }
-        inline void     scale_velocity(float factor)  {
+	inline void     set_velocity(uint8_t value)   { this->_buf[2] = value; }
+	inline void     scale_velocity(float factor)  {
 		if (factor < 0) factor = 0;
 		this->_buf[2] = (uint8_t) lrintf (this->_buf[2]*factor);
 		if (this->_buf[2] > 127) this->_buf[2] = 127;
diff --git a/libs/evoral/evoral/types.hpp b/libs/evoral/evoral/types.hpp
index 06f29b341e..2ba5ba86cb 100644
--- a/libs/evoral/evoral/types.hpp
+++ b/libs/evoral/evoral/types.hpp
@@ -32,7 +32,7 @@ typedef uint32_t FrameTime;
 typedef double MusicalTime;
 
 static inline bool musical_time_equal (MusicalTime a, MusicalTime b) {
-        /* acceptable tolerance is 1 tick. Nice if there was no magic number here */
+	/* acceptable tolerance is 1 tick. Nice if there was no magic number here */
 	return fabs (a - b) <= (1.0/1920.0);
 }
 
diff --git a/libs/evoral/src/ControlList.cpp b/libs/evoral/src/ControlList.cpp
index bb348625e6..fb8f88ecba 100644
--- a/libs/evoral/src/ControlList.cpp
+++ b/libs/evoral/src/ControlList.cpp
@@ -375,7 +375,7 @@ ControlList::reset_range (double start, double endt)
 	bool reset = false;
 
 	{
-        Glib::Mutex::Lock lm (_lock);
+		Glib::Mutex::Lock lm (_lock);
 		ControlEvent cp (start, 0.0f);
 		iterator s;
 		iterator e;
@@ -791,7 +791,7 @@ ControlList::unlocked_eval (double x) const
 	case 2:
 		if (x >= _events.back()->when) {
 			return _events.back()->value;
- 		} else if (x <= _events.front()->when) {
+		} else if (x <= _events.front()->when) {
 			return _events.front()->value;
 		}
 
@@ -811,7 +811,7 @@ ControlList::unlocked_eval (double x) const
 	default:
 		if (x >= _events.back()->when) {
 			return _events.back()->value;
- 		} else if (x <= _events.front()->when) {
+		} else if (x <= _events.front()->when) {
 			return _events.front()->value;
 		}