diff --git a/lib/ansible/module_common.py b/lib/ansible/module_common.py
index 4106c44d84d..2d494993217 100644
--- a/lib/ansible/module_common.py
+++ b/lib/ansible/module_common.py
@@ -276,7 +276,7 @@ class AnsibleModule(object):
         infile.close()
         return digest.hexdigest()
 
-    def backuplocal(self, fn):
+    def backup_local(self, fn):
         '''make a date-marked backup of the specified file, return True or False on success or failure'''
         # backups named basename-YYYY-MM-DD@HH:MM~
         ext = time.strftime("%Y-%m-%d@%H:%M~", time.localtime(time.time()))
diff --git a/library/assemble b/library/assemble
index c0c516b117f..479badf676e 100755
--- a/library/assemble
+++ b/library/assemble
@@ -75,7 +75,7 @@ def main():
 
     if pathmd5 != destmd5:
         if backup and destmd5 is not None:
-            module.backuplocal(dest)
+            module.backup_local(dest)
         shutil.copy(path, dest)
         changed = True
 
diff --git a/library/copy b/library/copy
index 9d9a00241bc..b4da56c9797 100755
--- a/library/copy
+++ b/library/copy
@@ -63,7 +63,7 @@ def main():
         try:
             if backup:
                 if os.path.exists(dest):
-                    backup_file = module.backuplocal(dest)
+                    backup_file = module.backup_local(dest)
             shutil.copyfile(src, dest)
         except shutil.Error:
             module.fail_json(msg="failed to copy: %s and %s are the same" % (src, dest))
diff --git a/library/lineinfile b/library/lineinfile
index 00f298e12bf..7675bb04818 100755
--- a/library/lineinfile
+++ b/library/lineinfile
@@ -70,7 +70,7 @@ def present(module, name, regexp, line, insertafter, backup):
 
     if changed:
         if backup:
-            module.backuplocal(name)
+            module.backup_local(name)
         f = open(name, 'wb')
         f.writelines(lines)
         f.close()
@@ -93,7 +93,7 @@ def absent(module, name, regexp, backup):
     changed = len(found) > 0
     if changed:
         if backup:
-            module.backuplocal(name)
+            module.backup_local(name)
         f = open(name, 'wb')
         f.writelines(lines)
         f.close()