diff --git a/Source/com/drew/metadata/mov/atoms/TrackHeaderAtom.java b/Source/com/drew/metadata/mov/atoms/TrackHeaderAtom.java
index 5adaf1da3..c7294007f 100644
--- a/Source/com/drew/metadata/mov/atoms/TrackHeaderAtom.java
+++ b/Source/com/drew/metadata/mov/atoms/TrackHeaderAtom.java
@@ -60,7 +60,7 @@ public void addMetadata(QuickTimeDirectory directory) {
             double y = matrix[0] + matrix[3];
             double theta = Math.atan2(y, x);
             double degree = Math.toDegrees(theta) - 45;
-            directory.setDouble(QuickTimeDirectory.TAG_ROTATION, Math.abs(degree));
+            directory.setDouble(QuickTimeDirectory.TAG_ROTATION, degree);
         }
     }
 }