diff --git a/public/java/src/org/broadinstitute/sting/gatk/report/GATKReportTable.java b/public/java/src/org/broadinstitute/sting/gatk/report/GATKReportTable.java
index 2f1b6b602..a830f8189 100755
--- a/public/java/src/org/broadinstitute/sting/gatk/report/GATKReportTable.java
+++ b/public/java/src/org/broadinstitute/sting/gatk/report/GATKReportTable.java
@@ -263,9 +263,6 @@ public class GATKReportTable {
      * @param populateFirstColumn   should we automatically populate the first column with the row's ID?
      */
     public void addRowIDMapping(final Object ID, final int index, final boolean populateFirstColumn) {
-        if ( populateFirstColumn && !isValidName(ID.toString()) )
-            throw new ReviewedStingException("Attempted to set a GATKReportTable ID of '" + ID + "'; GATKReportTable IDs must be purely alphanumeric - no spaces or special characters are allowed.");
-
         expandTo(index, false);
         rowIdToIndex.put(ID, index);
 
@@ -292,9 +289,6 @@ public class GATKReportTable {
      * @param format       the format string used to display data
      */
     public void addColumn(String columnName, String format) {
-        if (!isValidName(columnName)) {
-            throw new ReviewedStingException("Attempted to set a GATKReportTable column name of '" + columnName + "'.  GATKReportTable column names must be purely alphanumeric - no spaces or special characters are allowed.");
-        }
         columnNameToIndex.put(columnName, columnInfo.size());
         columnInfo.add(new GATKReportColumn(columnName, format));
     }
diff --git a/public/java/src/org/broadinstitute/sting/gatk/walkers/diffengine/DiffEngine.java b/public/java/src/org/broadinstitute/sting/gatk/walkers/diffengine/DiffEngine.java
index 28f78e880..7ce40ad98 100644
--- a/public/java/src/org/broadinstitute/sting/gatk/walkers/diffengine/DiffEngine.java
+++ b/public/java/src/org/broadinstitute/sting/gatk/walkers/diffengine/DiffEngine.java
@@ -240,10 +240,9 @@ public class DiffEngine {
         table.addColumn("Difference");
         table.addColumn("NumberOfOccurrences");
         table.addColumn("ExampleDifference");
-        for ( int i = 0; i > toShow.size(); i++ ) {
-            final Difference diff = toShow.get(i);
+        for ( final Difference diff : toShow ) {
             final String key = diff.getPath();
-            table.addRowIDMapping(key, i, true);
+            table.addRowID(key, true);
             table.set(key, "NumberOfOccurrences", diff.getCount());
             table.set(key, "ExampleDifference", diff.valueDiffString());
         }
diff --git a/public/java/test/org/broadinstitute/sting/gatk/walkers/diffengine/DiffObjectsIntegrationTest.java b/public/java/test/org/broadinstitute/sting/gatk/walkers/diffengine/DiffObjectsIntegrationTest.java
index 4a83c34cc..04fd26b14 100644
--- a/public/java/test/org/broadinstitute/sting/gatk/walkers/diffengine/DiffObjectsIntegrationTest.java
+++ b/public/java/test/org/broadinstitute/sting/gatk/walkers/diffengine/DiffObjectsIntegrationTest.java
@@ -50,8 +50,8 @@ public class DiffObjectsIntegrationTest extends WalkerTest {
 
     @DataProvider(name = "data")
     public Object[][] createData() {
-        new TestParams(testDir + "diffTestMaster.vcf", testDir + "diffTestTest.vcf", "dba5eab2b9587c1062721b164e4fd9a6");
-        new TestParams(testDir + "exampleBAM.bam", testDir + "exampleBAM.simple.bam", "de35c93450b46db5fc5516af3c55d62a");
+        new TestParams(testDir + "diffTestMaster.vcf", testDir + "diffTestTest.vcf", "aeb2283178d162555de18524fb127c84");
+        new TestParams(testDir + "exampleBAM.bam", testDir + "exampleBAM.simple.bam", "a43f6f2e209efe2d754c4d2104ca2156");
         return TestParams.getTests(TestParams.class);
     }