diff --git a/README.md b/README.md
index 64fdd21..9c31494 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ You can provide a mutator using the syntax: `{1:%d:+1}`. It will parse the first
 
 A mutator always consists of an operator and a value. In the example above `+` is the operator and `1` is the value.
 
-The following operators are supported for `%d` and `%f` formats:
+The following operators are supported for `%d`, `%f` and `%g` formats:
 - `+`
 - `-`
 - `*`