diff --git a/README.adoc b/README.adoc
index 43ae565..c55cc41 100644
--- a/README.adoc
+++ b/README.adoc
@@ -124,7 +124,7 @@ Numbers can be integers (GO int64) and float (GO float64). In mixed operations i
 | [blue]`+` | _sum_ | Add two values | [blue]`-1 + 2` _[1]_ +
 [blue]`4 + 0.5` _[4.5]_
 
-| [blue]`-` | _subtracion_ | Subtract the right value from the left one | [blue]`3 - 1` _[2]_ +
+| [blue]`-` | _subtraction_ | Subtract the right value from the left one | [blue]`3 - 1` _[2]_ +
 [blue]`4 - 0.5` _[3.5]_
 
 | [blue]`*` | _product_ | Multiply two values | `-1 * 2` _[-2]_ +