diff --git a/java/src/org/broadinstitute/sting/gatk/walkers/annotator/FisherStrand.java b/java/src/org/broadinstitute/sting/gatk/walkers/annotator/FisherStrand.java
index b6cc87065..0cbf43642 100755
--- a/java/src/org/broadinstitute/sting/gatk/walkers/annotator/FisherStrand.java
+++ b/java/src/org/broadinstitute/sting/gatk/walkers/annotator/FisherStrand.java
@@ -32,7 +32,8 @@ public class FisherStrand extends StandardVariantAnnotation {
         if ( pvalue == null )
             return null;
 
-        return new Pair<String, String>("FisherStrand", String.format("%.1f", -10.0 * Math.log10(pvalue)));
+        // use Math.abs to prevent -0's
+        return new Pair<String, String>("FisherStrand", String.format("%.1f", Math.abs(10.0 * Math.log10(pvalue))));
     }
 
     public boolean useZeroQualityReads() { return false; }
diff --git a/java/test/org/broadinstitute/sting/gatk/walkers/annotator/VariantAnnotatorIntegrationTest.java b/java/test/org/broadinstitute/sting/gatk/walkers/annotator/VariantAnnotatorIntegrationTest.java
index 3a875febd..5a3a7aca0 100755
--- a/java/test/org/broadinstitute/sting/gatk/walkers/annotator/VariantAnnotatorIntegrationTest.java
+++ b/java/test/org/broadinstitute/sting/gatk/walkers/annotator/VariantAnnotatorIntegrationTest.java
@@ -74,7 +74,7 @@ public class VariantAnnotatorIntegrationTest extends WalkerTest {
     public void testHasAnnotsAsking2() {
         WalkerTestSpec spec = new WalkerTestSpec(
                 baseTestString() + " -all -B variant,VCF,/humgen/gsa-scr1/GATK_Data/Validation_Data/vcfexample3.vcf -I /humgen/gsa-scr1/GATK_Data/Validation_Data/NA12878.1kg.p2.chr1_10mb_11_mb.SLX.bam -L 1:10,000,000-10,050,000", 1,
-                Arrays.asList("1f757921997fb5db79e2c4a79082e6d1"));
+                Arrays.asList("fcae8ca66020be99cc01cc699f489462"));
         executeTest("test file has annotations, asking for annotations, #2", spec);
     }
 
@@ -106,7 +106,7 @@ public class VariantAnnotatorIntegrationTest extends WalkerTest {
     public void testNoAnnotsAsking2() {
         WalkerTestSpec spec = new WalkerTestSpec(
                 baseTestString() + " -all -B variant,VCF,/humgen/gsa-scr1/GATK_Data/Validation_Data/vcfexample3empty.vcf -I /humgen/gsa-scr1/GATK_Data/Validation_Data/NA12878.1kg.p2.chr1_10mb_11_mb.SLX.bam -L 1:10,000,000-10,050,000", 1,
-                Arrays.asList("417917556d3a0f7da0eb3830e6b33c71"));
+                Arrays.asList("c31832ce6abf496180ebb64c1916b2e8"));
         executeTest("test file doesn't have annotations, asking for annotations, #2", spec);
     }
 
diff --git a/java/test/org/broadinstitute/sting/gatk/walkers/genotyper/UnifiedGenotyperIntegrationTest.java b/java/test/org/broadinstitute/sting/gatk/walkers/genotyper/UnifiedGenotyperIntegrationTest.java
index 226659971..be93cb191 100755
--- a/java/test/org/broadinstitute/sting/gatk/walkers/genotyper/UnifiedGenotyperIntegrationTest.java
+++ b/java/test/org/broadinstitute/sting/gatk/walkers/genotyper/UnifiedGenotyperIntegrationTest.java
@@ -81,7 +81,7 @@ public class UnifiedGenotyperIntegrationTest extends WalkerTest {
     public void testMultiSamplePilot1Joint() {
         WalkerTest.WalkerTestSpec spec = new WalkerTest.WalkerTestSpec(
                 "-T UnifiedGenotyper -R /broad/1KG/reference/human_b36_both.fasta -I /humgen/gsa-scr1/GATK_Data/Validation_Data/low_coverage_CEU.chr1.10k-11k.bam -varout %s -L 1:10,022,000-10,025,000 -bm empirical -gm JOINT_ESTIMATE -confidence 30", 1,
-                Arrays.asList("e1467f309e407a037404535b07b7e969"));
+                Arrays.asList("e72379c9654db9cf6ee17e7b9126f23e"));
         executeTest("testMultiSamplePilot1 - Joint Estimate", spec);
     }
 
@@ -89,7 +89,7 @@ public class UnifiedGenotyperIntegrationTest extends WalkerTest {
     public void testMultiSamplePilot2Joint() {
         WalkerTest.WalkerTestSpec spec = new WalkerTest.WalkerTestSpec(
                 "-T UnifiedGenotyper -R /broad/1KG/reference/human_b36_both.fasta -I /humgen/gsa-scr1/GATK_Data/Validation_Data/pilot2_daughters.chr20.10k-11k.bam -varout %s -L 20:10,000,000-10,050,000 -bm empirical -gm JOINT_ESTIMATE -confidence 30", 1,
-                Arrays.asList("8673c7dbe8dc4e93726706bd9276afc3"));
+                Arrays.asList("577ad8a1b1d16efc68e833a6d8e5b638"));
         executeTest("testMultiSamplePilot2 - Joint Estimate", spec);
     }
 
@@ -97,7 +97,7 @@ public class UnifiedGenotyperIntegrationTest extends WalkerTest {
     public void testSingleSamplePilot2Joint() {
         WalkerTest.WalkerTestSpec spec = new WalkerTest.WalkerTestSpec(
                 "-T UnifiedGenotyper -R /broad/1KG/reference/human_b36_both.fasta -I /humgen/gsa-scr1/GATK_Data/Validation_Data/NA12878.1kg.p2.chr1_10mb_11_mb.SLX.bam -varout %s -L 1:10,000,000-10,100,000 -bm empirical -gm JOINT_ESTIMATE -confidence 30", 1,
-                Arrays.asList("3d9bcf0f5525014f06b68fa006ef3fa3"));
+                Arrays.asList("b4a18843fc6fa76a878c39dfde1cedda"));
         executeTest("testSingleSamplePilot2 - Joint Estimate", spec);
     }