diff --git a/scripts/development/lib/legacy_deps.py b/scripts/development/lib/legacy_deps.py
index 83d973b71..1dda21ffa 100644
--- a/scripts/development/lib/legacy_deps.py
+++ b/scripts/development/lib/legacy_deps.py
@@ -132,7 +132,7 @@ class DependancyCrawler(object):
         """
         where_used_lst={}
         for src_filename in self.find_files():
-            data = open(src_filename,'r').read().replace('\n',' ')
+            data = open(src_filename,'r').read().replace('\n',' ').replace('\t',' ')
             use_list = []
             for function in self._all_functions[src]:
                 if data.find(' %s(' % (function)) > -1 or \