diff --git a/mrbgems/mruby-range-ext/mrblib/range.rb b/mrbgems/mruby-range-ext/mrblib/range.rb
index 7c5787fac..a213beb57 100644
--- a/mrbgems/mruby-range-ext/mrblib/range.rb
+++ b/mrbgems/mruby-range-ext/mrblib/range.rb
@@ -53,7 +53,6 @@ class Range
 
     # fast path for numerics
     if val.kind_of?(Numeric) && last.kind_of?(Numeric)
-      raise TypeError if exclude_end? && !last.kind_of?(Fixnum)
       return nil if val > last
       return nil if val == last && exclude_end?