diff --git a/include/Clip.h b/include/Clip.h
index f924691d..8092f895 100644
--- a/include/Clip.h
+++ b/include/Clip.h
@@ -218,7 +218,7 @@ namespace openshot {
 		Keyframe location_y; ///< Curve representing the relative Y position in percent based on the gravity (-100 to 100)
 
 		// Alpha and Rotation curves
-		Keyframe alpha; ///< Curve representing the alpha or transparency (0 to 1)
+		Keyframe alpha; ///< Curve representing the alpha (1 to 0)
 		Keyframe rotation; ///< Curve representing the rotation (0 to 360)
 
 		// Time and Volume curves
diff --git a/src/Clip.cpp b/src/Clip.cpp
index c32a6794..8b085bff 100644
--- a/src/Clip.cpp
+++ b/src/Clip.cpp
@@ -52,7 +52,7 @@ void Clip::init_settings()
 	location_y = Keyframe(0.0);
 
 	// Init alpha & rotation
-	alpha = Keyframe(0.0);
+	alpha = Keyframe(1.0);
 	rotation = Keyframe(0.0);
 
 	// Init time & volume
diff --git a/src/Timeline.cpp b/src/Timeline.cpp
index 3faefd83..9973a665 100644
--- a/src/Timeline.cpp
+++ b/src/Timeline.cpp
@@ -289,7 +289,7 @@ void Timeline::add_layer(tr1::shared_ptr<Frame> new_frame, Clip* source_clip, lo
 	int source_height = source_image->height();
 
 	/* ALPHA & OPACITY */
-	if (source_clip->alpha.GetValue(clip_frame_number) != 0)
+	if (source_clip->alpha.GetValue(clip_frame_number) != 1.0)
 	{
 		float alpha = source_clip->alpha.GetValue(clip_frame_number);
 
@@ -303,7 +303,7 @@ void Timeline::add_layer(tr1::shared_ptr<Frame> new_frame, Clip* source_clip, lo
 			int A = pixels[byte_index + 3];
 
 			// Apply alpha to pixel
-			pixels[byte_index + 3] *= (1.0 - alpha);
+			pixels[byte_index + 3] *= alpha;
 		}
 
 		// Debug output