diff --git a/public/java/src/org/broadinstitute/sting/gatk/walkers/bqsr/BinaryTagCovariate.java b/public/java/src/org/broadinstitute/sting/gatk/walkers/bqsr/BinaryTagCovariate.java
index 424d076b7..a89586c2c 100644
--- a/public/java/src/org/broadinstitute/sting/gatk/walkers/bqsr/BinaryTagCovariate.java
+++ b/public/java/src/org/broadinstitute/sting/gatk/walkers/bqsr/BinaryTagCovariate.java
@@ -9,7 +9,7 @@ import org.broadinstitute.sting.utils.sam.GATKSAMRecord;
  * @author Mauricio Carneiro
  * @since 7/6/12
  */
-public class BinaryTagCovariate implements StandardCovariate {
+public class BinaryTagCovariate implements ExperimentalCovariate {
 
     private String tag;