2 files changed, 3 insertions, 3 deletions
diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index 2b6724a963..579b1d186a 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -788,7 +788,7 @@ class TestFloat < Test::Unit::TestCase
   end
 
   def test_num2dbl
-    assert_raise(TypeError) do
+    assert_raise(ArgumentError, "comparison of String with 0 failed") do
       1.0.step(2.0, "0.5") {}
     end
     assert_raise(TypeError) do
diff --git a/test/ruby/test_numeric.rb b/test/ruby/test_numeric.rb
index 4f4fd5cc3e..49008247ed 100644
--- a/test/ruby/test_numeric.rb
+++ b/test/ruby/test_numeric.rb
@@ -261,8 +261,8 @@ class TestNumeric < Test::Unit::TestCase
     assert_raise(ArgumentError) { 1.step(10, 1, 0).size }
     assert_raise(ArgumentError) { 1.step(10, 0) { } }
     assert_raise(ArgumentError) { 1.step(10, 0).size }
-    assert_raise(TypeError) { 1.step(10, "1") { } }
-    assert_raise(TypeError) { 1.step(10, "1").size }
+    assert_raise(ArgumentError) { 1.step(10, "1") { } }
+    assert_raise(ArgumentError) { 1.step(10, "1").size }
     assert_raise(TypeError) { 1.step(10, nil) { } }
     assert_raise(TypeError) { 1.step(10, nil).size }
     assert_nothing_raised { 1.step(by: 0, to: nil) }