diff --git a/README.md b/README.md
index 946db283..4d847d60 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,7 @@ The following predicates are built-in to rusty-wam.
     * Comparison operators: `>`, `<`, `=<`, `>=`, `=:=`, `=\=`.
 * `(@>)/2`
 * `(@>=)/2`
-* `(@=>)/2`
+* `(@=<)/2`
 * `(@<)/2`
 * `(\+)/1`
 * `(==)/2`