diff --git a/troposphere/awslambda.py b/troposphere/awslambda.py
index ef3ec31ee..851d9e536 100644
--- a/troposphere/awslambda.py
+++ b/troposphere/awslambda.py
@@ -31,6 +31,14 @@ def validate(self):
             )
 
 
+class VPCConfig(AWSProperty):
+
+    props = {
+        'SecurityGroupIds': (list, True),
+        'SubnetIds': (list, True),
+    }
+
+
 class EventSourceMapping(AWSObject):
     resource_type = "AWS::Lambda::EventSourceMapping"
 
@@ -54,6 +62,7 @@ class Function(AWSObject):
         'Role': (basestring, True),
         'Runtime': (basestring, True),
         'Timeout': (positive_integer, False),
+        'VpcConfig': (VPCConfig, False),
     }