diff --git a/src/spectator/mocks/double.cr b/src/spectator/mocks/double.cr
index 1fd564f..29ca009 100644
--- a/src/spectator/mocks/double.cr
+++ b/src/spectator/mocks/double.cr
@@ -1,7 +1,7 @@
 require "./arguments"
 require "./method_call"
 require "./stub"
-require "./stubable"
+require "./stubbable"
 require "./stubbed_name"
 require "./unexpected_message"
 require "./value_stub"
@@ -17,7 +17,7 @@ module Spectator
   # Only methods defined in the double's type can have stubs.
   # New methods are not defines when a stub is added that doesn't have a matching method name.
   abstract class Double
-    include Stubable
+    include Stubbable
 
     Log = Spectator::Log.for(self)
 
diff --git a/src/spectator/mocks/stubable.cr b/src/spectator/mocks/stubbable.cr
similarity index 98%
rename from src/spectator/mocks/stubable.cr
rename to src/spectator/mocks/stubbable.cr
index b059fca..4bf9521 100644
--- a/src/spectator/mocks/stubable.cr
+++ b/src/spectator/mocks/stubbable.cr
@@ -9,7 +9,7 @@ module Spectator
   # Types including this module must define `#_spectator_find_stub` and `#_spectator_stubbed_name`.
   # These are internal, reserved method names by Spectator, hence the `_spectator` prefix.
   # These methods can't (and shouldn't) be stubbed.
-  module Stubable
+  module Stubbable
     # Attempts to find a stub that satisfies a method call.
     #
     # Returns a stub that matches the method *call*
@@ -31,7 +31,7 @@ module Spectator
     # ```
     #
     # The method being stubbed must already exist in the type, parent, or included/extend module.
-    # If it doesn't exist, and a new stubable method is being added, use `#inject_stub` instead.
+    # If it doesn't exist, and a new stubbable method is being added, use `#inject_stub` instead.
     # The original's method is called if there are no applicable stubs for the invocation.
     # The body of the method passed to this macro is ignored.
     #