diff --git a/java/src/org/broadinstitute/sting/gatk/walkers/sequenom/PickSequenomProbes.java b/java/src/org/broadinstitute/sting/gatk/walkers/sequenom/PickSequenomProbes.java
index bb50329f0..4b92bf58b 100755
--- a/java/src/org/broadinstitute/sting/gatk/walkers/sequenom/PickSequenomProbes.java
+++ b/java/src/org/broadinstitute/sting/gatk/walkers/sequenom/PickSequenomProbes.java
@@ -26,6 +26,7 @@
 package org.broadinstitute.sting.gatk.walkers.sequenom;
 
 import net.sf.samtools.util.CloseableIterator;
+import org.broad.tribble.dbsnp.DbSNPCodec;
 import org.broad.tribble.dbsnp.DbSNPFeature;
 import org.broadinstitute.sting.gatk.contexts.AlignmentContext;
 import org.broadinstitute.sting.gatk.contexts.ReferenceContext;
@@ -74,7 +75,7 @@ public class PickSequenomProbes extends RodWalker<String, String> {
             ReferenceOrderedData snp_mask;
             if ( SNP_MASK.contains(DbSNPHelper.STANDARD_DBSNP_TRACK_NAME)) {
                 TribbleRMDTrackBuilder builder = new TribbleRMDTrackBuilder();
-                CloseableIterator<GATKFeature> iter = builder.createInstanceOfTrack(DbSNPFeature.class,"snp_mask",new java.io.File(SNP_MASK)).getIterator();
+                CloseableIterator<GATKFeature> iter = builder.createInstanceOfTrack(DbSNPCodec.class,"snp_mask",new java.io.File(SNP_MASK)).getIterator();
                 snpMaskIterator = new SeekableRODIterator(iter);
                 
             } else {
diff --git a/java/test/org/broadinstitute/sting/gatk/walkers/sequenom/PickSequenomProbesIntegrationTest.java b/java/test/org/broadinstitute/sting/gatk/walkers/sequenom/PickSequenomProbesIntegrationTest.java
index ae9462dd1..ad26d1f4c 100755
--- a/java/test/org/broadinstitute/sting/gatk/walkers/sequenom/PickSequenomProbesIntegrationTest.java
+++ b/java/test/org/broadinstitute/sting/gatk/walkers/sequenom/PickSequenomProbesIntegrationTest.java
@@ -14,4 +14,16 @@ public class PickSequenomProbesIntegrationTest extends WalkerTest {
                 Arrays.asList("6b5409cc78960f1be855536ed89ea9dd"));
         executeTest("Test probes", spec);
     }
+
+    @Test
+    public void testProbesUsingDbSNPMask() {
+        String testVCF = validationDataLocation + "pickSeqIntegrationTest.vcf";
+        String testArgs = "-snp_mask " + GATKDataLocation + "/dbsnp_130_b36.rod -R "
+                + oneKGLocation + "reference/human_b36_both.fasta -omitWindow -nameConvention "
+                + "-project_id 1kgp3_s4_lf -T PickSequenomProbes -L " + validationDataLocation +
+                "/pickSeqIntegrationTest.interval_list -B input,VCF,"+testVCF+" -o %s";
+        WalkerTestSpec spec = new WalkerTestSpec(testArgs, 1,
+                Arrays.asList("49bd6f53b93802576ed3dac8af4bcf8a"));
+        executeTest("Test probes", spec);
+    }
 }
\ No newline at end of file