1 files changed, 1 insertions, 1 deletions
diff --git a/math.c b/math.c
index b15e87113c..e1c0e1b1ad 100644
--- a/math.c
+++ b/math.c
@@ -683,7 +683,7 @@ math_cbrt(VALUE obj, VALUE x)
  *     Math.frexp(x)    -> [fraction, exponent]
  *
  *  Returns a two-element array containing the normalized fraction (a Float)
- *  and exponent (a Fixnum) of +x+.
+ *  and exponent (an Integer) of +x+.
  *
  *     fraction, exponent = Math.frexp(1234)   #=> [0.6025390625, 11]
  *     fraction * 2**exponent                  #=> 1234.0