diff --git a/src/enum.cr b/src/enum.cr
index 0f2fd022e0cf..c3438d7812dd 100644
--- a/src/enum.cr
+++ b/src/enum.cr
@@ -86,6 +86,20 @@
 #   puts "Got blue"
 # end
 # ```
+#
+# ### Changing the Base Type
+#
+# The type of the underlying enum value is `Int32` by default, but it can be changed to any type in `Int::Primitive`.
+#
+# ```
+# enum Color : UInt8
+#   Red
+#   Green
+#   Blue
+# end
+#
+# Color::Red.value # : UInt8
+# ```
 struct Enum
   include Comparable(self)