diff --git a/templates/index.html b/templates/index.html
index 8507dbe..eb58771 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -200,7 +200,7 @@
             <div class="form-group">
                 <label for="pose_threshold">Maximum Head Pose Deviation:</label>
                 <input type="number" step="0.1" name="pose_threshold" value="{{ request.form.pose_threshold or 25 }}">
-                <small class="form-text text-muted">Maximum allowed head pose deviation in degrees.</small>
+                <small class="form-text text-muted">Maximum allowed head angle in degrees (0 degrees is when subject is looking straight at the camera).</small>
             </div>
             <div class="form-group">
                 <label>