diff --git a/meta/lib/oe/license.py b/meta/lib/oe/license.py
index ca779d3d83..bd28a247c9 100644
--- a/meta/lib/oe/license.py
+++ b/meta/lib/oe/license.py
@@ -84,9 +84,6 @@ class FlattenVisitor(LicenseVisitor):
         self.licenses = []
         LicenseVisitor.__init__(self)
 
-    def visit_Str(self, node):
-        self.licenses.append(node.s)
-
     def visit_Constant(self, node):
         self.licenses.append(node.value)
 
@@ -240,9 +237,6 @@ class ListVisitor(LicenseVisitor):
     def __init__(self):
         self.licenses = set()
 
-    def visit_Str(self, node):
-        self.licenses.add(node.s)
-
     def visit_Constant(self, node):
         self.licenses.add(node.value)