diff --git a/public/java/src/org/broadinstitute/sting/gatk/walkers/indels/RealignerTargetCreator.java b/public/java/src/org/broadinstitute/sting/gatk/walkers/indels/RealignerTargetCreator.java
index a831ec0a6..a33ac52f5 100755
--- a/public/java/src/org/broadinstitute/sting/gatk/walkers/indels/RealignerTargetCreator.java
+++ b/public/java/src/org/broadinstitute/sting/gatk/walkers/indels/RealignerTargetCreator.java
@@ -133,7 +133,7 @@ public class RealignerTargetCreator extends RodWalker<RealignerTargetCreator.Eve
     /**
      * Because the realignment algorithm is N^2, allowing too large an interval might take too long to completely realign.
      */
-    @Argument(fullName="maxIntervalSize", shortName="maxInterval", doc="maximum interval size", required=false)
+    @Argument(fullName="maxIntervalSize", shortName="maxInterval", doc="maximum interval size; any intervals larger than this value will be dropped", required=false)
     protected int maxIntervalSize = 500;