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diff --git a/index.md b/index.md
index 2e0636437..7566acbee 100644
--- a/index.md
+++ b/index.md
@@ -2,6 +2,7 @@
 layout: global
 title: Home
 custom_title: Apache Spark™ - Lightning-Fast Cluster Computing
+description: Apache Spark is a fast and general engine for big data processing, with built-in modules for streaming, SQL, machine learning and graph processing.
 type: page
 navigation:
   weight: 1