diff --git a/lib/galaxy/tools/actions/__init__.py b/lib/galaxy/tools/actions/__init__.py
index f8c4690d7e7..1160b05620c 100644
--- a/lib/galaxy/tools/actions/__init__.py
+++ b/lib/galaxy/tools/actions/__init__.py
@@ -193,7 +193,7 @@ class DefaultToolAction( object ):
 
         # Collect chromInfo dataset and add as parameters to incoming
         db_datasets = {}
-        ( chrom_info, db_dataset ) = trans.app.genome_builds.get_chrom_info( input_dbkey, trans=trans )
+        ( chrom_info, db_dataset ) = trans.app.genome_builds.get_chrom_info( input_dbkey, tool, trans=trans )
         if db_dataset:
             inp_data.update( { "chromInfo": db_dataset } )
         incoming[ "chromInfo" ] = chrom_info
diff --git a/lib/galaxy/util/dbkeys.py b/lib/galaxy/util/dbkeys.py
index 3a6baef8606..075a830df54 100644
--- a/lib/galaxy/util/dbkeys.py
+++ b/lib/galaxy/util/dbkeys.py
@@ -2,7 +2,7 @@
 Functionality for dealing with dbkeys.
 """
 #dbkeys read from disk using builds.txt
-from galaxy.util import dbnames, galaxy_directory
+from galaxy.util import dbnames
 from galaxy.util.json import from_json_string
 from galaxy.util.odict import odict
 import os.path
@@ -44,7 +44,7 @@ class GenomeBuilds( object ):
                     rval.append( ( key, "%s (%s) [Custom]" % ( chrom_dict['name'], key ) ) )
         return rval
 
-    def get_chrom_info( self, dbkey, trans=None ):
+    def get_chrom_info( self, dbkey, tool, trans=None ):
         chrom_info = None
         db_dataset = None
         # Collect chromInfo from custom builds