1 files changed, 1 insertions, 1 deletions
diff --git a/random.c b/random.c
index d3451b83c..849e07c41 100644
--- a/random.c
+++ b/random.c
@@ -970,7 +970,7 @@ float_value(VALUE v)
  *     prng.rand(5.0..9.0) # => between 5.0 and 9.0, including 9.0
  *     prng.rand(5.0...9.0) # => between 5.0 and 9.0, excluding 9.0
  *
- * +begin+/+end+ of the range have to have subtruct and add methods.
+ * +begin+/+end+ of the range have to have subtract and add methods.
  *
  * Otherwise, it raises an ArgumentError.
  */