diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index ef38b4f92a..131ca0ea24 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -1131,6 +1131,22 @@
+
+ multilib*.bbclass
+
+
+ The Multilib (multilib*) classes provide support
+ for building libraries with different target optimizations or target
+ architectures and installing them side-by-side in the same image.
+
+
+
+ For more information on using the Multilib feature, see the
+ "Combining Multiple Versions of Library Files into One Image"
+ section in the Yocto Project Development Manual.
+
+
+
Pkg-config - pkgconfig.bbclass