diff --git a/troposphere/__init__.py b/troposphere/__init__.py
index 399e6f9d9..6a180be4e 100644
--- a/troposphere/__init__.py
+++ b/troposphere/__init__.py
@@ -905,7 +905,8 @@ def check_type(t, v):
                 if p in self.properties:
                     raise ValueError("%s can only be used with parameters of "
                                      "the String type." % p)
-        if self.properties['Type'] != 'Number':
+        if (self.properties['Type'] != 'Number' and
+            self.properties['Type'] != 'List<Number>'):
             for p in self.NUMBER_PROPERTIES:
                 if p in self.properties:
                     raise ValueError("%s can only be used with parameters of "