diff --git a/jbrowse/src/org/labkey/jbrowse/JBrowseLuceneSearch.java b/jbrowse/src/org/labkey/jbrowse/JBrowseLuceneSearch.java
index 14d0aa031..291d37cca 100644
--- a/jbrowse/src/org/labkey/jbrowse/JBrowseLuceneSearch.java
+++ b/jbrowse/src/org/labkey/jbrowse/JBrowseLuceneSearch.java
@@ -245,7 +245,7 @@ else if (numericQueryParserFields.containsKey(fieldName))
                     throw new IllegalArgumentException("Could not find type for sort field: " + sortField);
                 }
 
-                sort = new Sort(new SortField(sortField, fieldType, sortReverse));
+                sort = new Sort(new SortField(sortField + "_sort", fieldType, sortReverse));
             }
 
             // Get chunks of size {pageSize}. Default to 1 chunk -- add to the offset to get more.