diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst
index a53ec2eb8176..65ae2bf1f86d 100644
--- a/Documentation/core-api/kernel-api.rst
+++ b/Documentation/core-api/kernel-api.rst
@@ -33,6 +33,9 @@ String Conversions
 .. kernel-doc:: lib/kstrtox.c
    :export:
 
+.. kernel-doc:: lib/string_helpers.c
+   :export:
+
 String Manipulation
 -------------------