diff --git a/data/effects/tracker.xml b/data/effects/tracker.xml
--- a/data/effects/tracker.xml
+++ b/data/effects/tracker.xml
@@ -10,6 +10,10 @@
 	   <paramlistdisplay>KCF,MIL,Boosting,TLD</paramlistdisplay>
 		<name>Tracker algorithm</name>
 	</parameter>
+	<parameter type="constant" name="steps" default="5" min="0" max="120">
+		<name>Keyframes spacing</name>
+		<comment>Defines the frequency of stored keyframes. A keyframe is created every steps frames.</comment>
+	</parameter>
         <parameter type="list" name="shape" default="0" paramlist="0;1;2">
 	   <paramlistdisplay>Rectangle,Ellipse,Arrow</paramlistdisplay>
 		<name>Frame shape</name>