diff --git a/ChangeLog b/ChangeLog
index e5dbce7525..e58bf4862c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu May  1 23:35:11 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* range.c (range_step): allow float step bigger than zero but less
+	  than one.  [ruby-dev:34557]
+
 Thu May  1 23:20:12 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* bignum.c (rb_big_divide): return an integer for idiv.
diff --git a/range.c b/range.c
index 51ad42b6da..d81db5fff5 100644
--- a/range.c
+++ b/range.c
@@ -312,7 +312,7 @@ range_step(int argc, VALUE *argv, VALUE range)
 	    unit = NUM2LONG(step);
 	}
 	else {
-	    VALUE tmp = rb_to_int(step);
+	    VALUE tmp = rb_funcall(rb_funcall(b, '+', 1, step), '-', 1, b);
 	    unit = rb_cmpint(tmp, step, INT2FIX(0));
 	}
     }