diff --git a/doc/manual/src/language/operators.md b/doc/manual/src/language/operators.md
index fb824feca..a287b513f 100644
--- a/doc/manual/src/language/operators.md
+++ b/doc/manual/src/language/operators.md
@@ -120,7 +120,7 @@ The result is a string.
 
 ## Update
 
-> *attrset1* + *attrset2*
+> *attrset1* // *attrset2*
 
 Update [attribute set] *attrset1* with names and values from *attrset2*.