diff --git a/meta-yocto/conf/local.conf.sample b/meta-yocto/conf/local.conf.sample
index ea32b810d6..d8ec50d8b8 100644
--- a/meta-yocto/conf/local.conf.sample
+++ b/meta-yocto/conf/local.conf.sample
@@ -156,8 +156,11 @@ ENABLE_BINARY_LOCALE_GENERATION = "1"
 # Supported values are i686 and x86_64
 #SDKMACHINE ?= "i686"
 
-# Poky can try and fetch packaged-staging packages from a http, https or ftp
-# mirror. Set this variable to the root of a pstage directory on a server.
+# The build system can check data caches for prebuilt data objects before
+# it builds the data itself. This can be a filesystem directory, or a remote url
+# such as http or ftp. These would contain the sstate-cache results from previous
+# builds (possibly from other machines). This variable works like fetcher 
+# MIRRORS/PREMIRRORS and points to the cache locations to check for the shared objects.
 #SSTATE_MIRRORS ?= "\
 #file://.* http://someserver.tld/share/sstate/ \n \
 #file://.* file:///some/local/dir/sstate/"