diff --git a/public/java/test/org/broadinstitute/sting/utils/variantcontext/VariantContextUtilsUnitTest.java b/public/java/test/org/broadinstitute/sting/utils/variantcontext/VariantContextUtilsUnitTest.java
index f3daa9e4c..3ad438b26 100644
--- a/public/java/test/org/broadinstitute/sting/utils/variantcontext/VariantContextUtilsUnitTest.java
+++ b/public/java/test/org/broadinstitute/sting/utils/variantcontext/VariantContextUtilsUnitTest.java
@@ -793,7 +793,7 @@ public class VariantContextUtilsUnitTest extends BaseTest {
 
         int sampleI = 0;
         for ( final List<Allele> alleles : Utils.makePermutations(vc.getAlleles(), 2, true) ) {
-            genotypes.add(GenotypeBuilder.create("sample" + sampleI, alleles));
+            genotypes.add(GenotypeBuilder.create("sample" + sampleI++, alleles));
         }
         genotypes.add(GenotypeBuilder.createMissing("missing", 2));