diff --git a/doc/contributing/using-symbols.md b/doc/contributing/using-symbols.md
index dbdd3aff725..d901e88a85f 100644
--- a/doc/contributing/using-symbols.md
+++ b/doc/contributing/using-symbols.md
@@ -50,7 +50,7 @@ Some extremely popular modules in the ecosystem monkey patch some
 internals, making it impossible for us to update and improve those
 areas without causing issues for a significant amount of users.
 
-## `Symbol.for`
+## `Symbol.for(string)`
 
 Symbols created with `Symbol.for(string)` are global and unique to the
 same V8 Isolate. On the first call to `Symbol.for(string)` a symbol is