diff --git a/java/src/org/broadinstitute/sting/gatk/walkers/genotyper/GenotypeLikelihoods.java b/java/src/org/broadinstitute/sting/gatk/walkers/genotyper/GenotypeLikelihoods.java
index e1203898f..c6269f032 100644
--- a/java/src/org/broadinstitute/sting/gatk/walkers/genotyper/GenotypeLikelihoods.java
+++ b/java/src/org/broadinstitute/sting/gatk/walkers/genotyper/GenotypeLikelihoods.java
@@ -328,7 +328,7 @@ public class GenotypeLikelihoods implements Cloneable {
         return 1;
     }
 
-    static GenotypeLikelihoods[][][][][][] CACHE = new GenotypeLikelihoods[BaseMismatchModel.values().length][EmpiricalSubstitutionProbabilities.SequencerPlatform.values().length][BaseUtils.BASES.length][QualityUtils.MAX_QUAL_SCORE][MAX_PLOIDY][2];
+    static GenotypeLikelihoods[][][][][][] CACHE = new GenotypeLikelihoods[BaseMismatchModel.values().length][EmpiricalSubstitutionProbabilities.SequencerPlatform.values().length][BaseUtils.BASES.length][QualityUtils.MAX_QUAL_SCORE+1][MAX_PLOIDY][2];
 
     private boolean inCache( char observedBase, byte qualityScore, int ploidy, SAMRecord read) {
         return getCache(CACHE, observedBase, qualityScore, ploidy, read) != null;
diff --git a/java/src/org/broadinstitute/sting/gatk/walkers/genotyper/PooledCalculationModel.java b/java/src/org/broadinstitute/sting/gatk/walkers/genotyper/PooledCalculationModel.java
index c74c2f074..9cfbb4fad 100755
--- a/java/src/org/broadinstitute/sting/gatk/walkers/genotyper/PooledCalculationModel.java
+++ b/java/src/org/broadinstitute/sting/gatk/walkers/genotyper/PooledCalculationModel.java
@@ -77,7 +77,7 @@ public class PooledCalculationModel extends JointEstimateGenotypeCalculationMode
     static double[][][][][][][][] CACHE = null;
     static int N_CACHED = 0;
     private static void makeCache(int pool_size) {
-        CACHE = new double[BaseMismatchModel.values().length][EmpiricalSubstitutionProbabilities.SequencerPlatform.values().length][BaseUtils.BASES.length][BaseUtils.BASES.length][BaseUtils.BASES.length][QualityUtils.MAX_QUAL_SCORE][2][2 * pool_size+1];
+        CACHE = new double[BaseMismatchModel.values().length][EmpiricalSubstitutionProbabilities.SequencerPlatform.values().length][BaseUtils.BASES.length][BaseUtils.BASES.length][BaseUtils.BASES.length][QualityUtils.MAX_QUAL_SCORE+1][2][2 * pool_size+1];
     }
 
     protected void setCache( int refIndex, int altIndex, int nAltAlleles, char base, byte qual, SAMRecord read, double val ) {
diff --git a/java/src/org/broadinstitute/sting/utils/QualityUtils.java b/java/src/org/broadinstitute/sting/utils/QualityUtils.java
index 6fae2a380..1b5620301 100755
--- a/java/src/org/broadinstitute/sting/utils/QualityUtils.java
+++ b/java/src/org/broadinstitute/sting/utils/QualityUtils.java
@@ -1,5 +1,7 @@
 package org.broadinstitute.sting.utils;
 
+import net.sf.samtools.SAMUtils;
+
 /**
  * QualityUtils is a static class (no instantiation allowed!) with some utility methods for manipulating
  * quality scores.
@@ -7,7 +9,7 @@ package org.broadinstitute.sting.utils;
  * @author Kiran Garimella
  */
 public class QualityUtils {
-    public final static byte MAX_QUAL_SCORE = 63;
+    public final static byte MAX_QUAL_SCORE = SAMUtils.MAX_PHRED_SCORE;
     public final static double MIN_REASONABLE_ERROR = 0.0001;
     public final static byte MAX_REASONABLE_Q_SCORE = 40;