diff --git a/protected/java/src/org/broadinstitute/sting/gatk/walkers/haplotypecaller/HaplotypeCaller.java b/protected/java/src/org/broadinstitute/sting/gatk/walkers/haplotypecaller/HaplotypeCaller.java
index a41b68e2c..24fd5901f 100644
--- a/protected/java/src/org/broadinstitute/sting/gatk/walkers/haplotypecaller/HaplotypeCaller.java
+++ b/protected/java/src/org/broadinstitute/sting/gatk/walkers/haplotypecaller/HaplotypeCaller.java
@@ -336,7 +336,7 @@ public class HaplotypeCaller extends ActiveRegionWalker<List<VariantContext>, In
      */
     @Advanced
     @Argument(fullName="phredScaledGlobalReadMismappingRate", shortName="globalMAPQ", doc="The global assumed mismapping rate for reads", required = false)
-    protected int phredScaledGlobalReadMismappingRate = 60;
+    protected int phredScaledGlobalReadMismappingRate = 45;
 
     @Advanced
     @Argument(fullName="maxNumHaplotypesInPopulation", shortName="maxNumHaplotypesInPopulation", doc="Maximum number of haplotypes to consider for your population. This number will probably need to be increased when calling organisms with high heterozygosity.", required = false)