diff --git a/public/java/src/org/broadinstitute/sting/gatk/GenomeAnalysisEngine.java b/public/java/src/org/broadinstitute/sting/gatk/GenomeAnalysisEngine.java
index da7eaf6e4..5b9ebd99b 100755
--- a/public/java/src/org/broadinstitute/sting/gatk/GenomeAnalysisEngine.java
+++ b/public/java/src/org/broadinstitute/sting/gatk/GenomeAnalysisEngine.java
@@ -961,7 +961,7 @@ public class GenomeAnalysisEngine {
 
     /**
      * Get the list of intervals passed to the engine.
-     * @return List of intervals.
+     * @return List of intervals, or null if no intervals are in use
      */
     public GenomeLocSortedSet getIntervals() {
         return this.intervals;