1 files changed, 1 insertions, 1 deletions
diff --git a/spec/ruby/core/string/index_spec.rb b/spec/ruby/core/string/index_spec.rb
index ca62911db0..8d2c8af193 100644
--- a/spec/ruby/core/string/index_spec.rb
+++ b/spec/ruby/core/string/index_spec.rb
@@ -27,7 +27,7 @@ describe "String#index" do
     "abc".index("c", offset).should == 2
   end
 
-  it "raises a TypeError if passed a Fixnum" do
+  it "raises a TypeError if passed an Integer" do
     -> { "abc".index 97 }.should raise_error(TypeError)
   end
 end