diff --git a/public/java/src/org/broadinstitute/sting/utils/activeregion/ActivityProfile.java b/public/java/src/org/broadinstitute/sting/utils/activeregion/ActivityProfile.java
index 6ef5a2af2..70593bbed 100644
--- a/public/java/src/org/broadinstitute/sting/utils/activeregion/ActivityProfile.java
+++ b/public/java/src/org/broadinstitute/sting/utils/activeregion/ActivityProfile.java
@@ -158,11 +158,11 @@ public class ActivityProfile {
         // find the best place to break up the large active region
         Double minProb = Double.MAX_VALUE;
         int cutPoint = -1;
-        for( int iii = curStart + 45; iii < curEnd - 45; iii++ ) { // BUGBUG: assumes maxRegionSize >> 45
+        for( int iii = curStart + 50; iii < curEnd - 50; iii++ ) { // BUGBUG: assumes maxRegionSize >> 50
             if( isActiveList.get(iii) < minProb ) { minProb = isActiveList.get(iii); cutPoint = iii; }
         }
         final List<ActiveRegion> leftList = createActiveRegion(isActive, curStart, cutPoint, activeRegionExtension, maxRegionSize, new ArrayList<ActiveRegion>());
-        final List<ActiveRegion> rightList = createActiveRegion(isActive, cutPoint, curEnd, activeRegionExtension, maxRegionSize, new ArrayList<ActiveRegion>());
+        final List<ActiveRegion> rightList = createActiveRegion(isActive, cutPoint+1, curEnd, activeRegionExtension, maxRegionSize, new ArrayList<ActiveRegion>());
         returnList.addAll( leftList );
         returnList.addAll( rightList );
         return returnList;
diff --git a/public/java/test/org/broadinstitute/sting/gatk/walkers/activeregionqc/CountReadsInActiveRegionsIntegrationTest.java b/public/java/test/org/broadinstitute/sting/gatk/walkers/activeregionqc/CountReadsInActiveRegionsIntegrationTest.java
index 7d1fc637b..250a3d368 100644
--- a/public/java/test/org/broadinstitute/sting/gatk/walkers/activeregionqc/CountReadsInActiveRegionsIntegrationTest.java
+++ b/public/java/test/org/broadinstitute/sting/gatk/walkers/activeregionqc/CountReadsInActiveRegionsIntegrationTest.java
@@ -38,7 +38,7 @@ public class CountReadsInActiveRegionsIntegrationTest extends WalkerTest {
         WalkerTestSpec spec = new WalkerTestSpec(
                 "-T CountReadsInActiveRegions -R " + b37KGReference + " -I " + b37GoodNA12878BAM + " -L 20:10,000,000-10,200,000 -o %s",
                 1,
-                Arrays.asList("1e9e8d637d2acde23fa99fe9dc07e3e2"));
+                Arrays.asList("942d067e6863a3f3524f67dc0aa02ef2"));
         executeTest("CountReadsInActiveRegions:", spec);
     }
 }
\ No newline at end of file