2 files changed, 3 insertions, 3 deletions
diff --git a/spec/ruby/core/dir/chroot_spec.rb b/spec/ruby/core/dir/chroot_spec.rb
index 1afe254957..23d790c83b 100644
--- a/spec/ruby/core/dir/chroot_spec.rb
+++ b/spec/ruby/core/dir/chroot_spec.rb
@@ -31,7 +31,7 @@ platform_is_not :windows do
         it "calls #to_path on non-String argument" do
           p = mock('path')
           p.should_receive(:to_path).and_return('.')
-          lambda { Dir.chroot(p) }.should raise_error
+          lambda { Dir.chroot(p) }.should raise_error(Errno::EPERM)
         end
       end
     end
diff --git a/spec/ruby/core/dir/shared/open.rb b/spec/ruby/core/dir/shared/open.rb
index 3c2b63b6fa..7f4fe5c2a6 100644
--- a/spec/ruby/core/dir/shared/open.rb
+++ b/spec/ruby/core/dir/shared/open.rb
@@ -30,9 +30,9 @@ describe :dir_open, shared: true do
     lambda do
       Dir.send(@method, DirSpecs.mock_dir) do |dir|
         closed_dir = dir
-        raise
+        raise "dir specs"
       end
-    end.should raise_error
+    end.should raise_error(RuntimeError, "dir specs")
 
     lambda { closed_dir.read }.should raise_error(IOError)
   end