diff --git a/src/spectator/test_suite.cr b/src/spectator/test_suite.cr
index 9712173..6392872 100644
--- a/src/spectator/test_suite.cr
+++ b/src/spectator/test_suite.cr
@@ -3,6 +3,7 @@ module Spectator
   # Use `#each` to enumerate over all tests in the suite.
   class TestSuite
     include Enumerable(Example)
+    include Iterable(Example)
 
     # Creates the test suite.
     # The example *group* provided will be run.
@@ -11,13 +12,13 @@ module Spectator
 
     # Yields each example in the test suite.
     def each : Nil
-      iterator.each do |example|
+      each.each do |example|
         yield example
       end
     end
 
-    # Creates an iterator for the example group.
-    private def iterator
+    # Returns an iterator that yields all examples in the test suite.
+    def each : Iterator(Example)
       ExampleIterator.new(@group)
     end
   end