diff --git a/meta-poky/conf/local.conf.sample b/meta-poky/conf/local.conf.sample
index cf96598819..267108d685 100644
--- a/meta-poky/conf/local.conf.sample
+++ b/meta-poky/conf/local.conf.sample
@@ -124,6 +124,8 @@ PACKAGE_CLASSES ?= "package_rpm"
 # variable can contain the following options:
 #  "dbg-pkgs"       - add -dbg packages for all installed packages
 #                     (adds symbol information for debugging/profiling)
+#  "src-pkgs"       - add -src packages for all installed packages
+#                     (adds source code for debugging)
 #  "dev-pkgs"       - add -dev packages for all installed packages
 #                     (useful if you want to develop against libs in the image)
 #  "ptest-pkgs"     - add -ptest packages for all ptest-enabled packages