diff --git a/secondary/common/config.go b/secondary/common/config.go
index df8abcdbf..0ac5b5d3d 100644
--- a/secondary/common/config.go
+++ b/secondary/common/config.go
@@ -1277,6 +1277,13 @@ var SystemConfig = Config{
 		false, // mutable
 		false, // case-insensitive
 	},
+	"indexer.plasma.mainIndex.enableInMemoryCompression": ConfigValue{
+		false,
+		"Enable compression of memory resident items",
+		false,
+		false, // mutable
+		false, // case-insensitive
+	},
 	"indexer.plasma.mainIndex.enablePageBloomFilter": ConfigValue{
 		false,
 		"Enable maintenance and use of bloom filter for lookup of swapped out items",
@@ -1389,6 +1396,13 @@ var SystemConfig = Config{
 		false, // mutable
 		false, // case-insensitive
 	},
+	"indexer.plasma.backIndex.enableInMemoryCompression": ConfigValue{
+		false,
+		"Enable compression of memory resident items",
+		false,
+		false, // mutable
+		false, // case-insensitive
+	},
 	"indexer.plasma.backIndex.enablePageBloomFilter": ConfigValue{
 		false,
 		"Enable maintenance and use of bloom filter for lookup of swapped out items",
diff --git a/secondary/indexer/plasma_slice.go b/secondary/indexer/plasma_slice.go
index 4d5b49a6f..0714c93bd 100644
--- a/secondary/indexer/plasma_slice.go
+++ b/secondary/indexer/plasma_slice.go
@@ -363,6 +363,7 @@ func (slice *plasmaSlice) initStores() error {
 	mCfg.EnablePageBloomFilter = slice.sysconf["plasma.mainIndex.enablePageBloomFilter"].Bool()
 	mCfg.BloomFilterFalsePositiveRate = slice.sysconf["plasma.mainIndex.bloomFilterFalsePositiveRate"].Float64()
 	mCfg.BloomFilterExpectedMaxItems = slice.sysconf["plasma.mainIndex.bloomFilterExpectedMaxItems"].Uint64()
+	mCfg.EnableInMemoryCompression = slice.sysconf["plasma.mainIndex.enableInMemoryCompression"].Bool()
 
 	bCfg.MaxDeltaChainLen = slice.sysconf["plasma.backIndex.maxNumPageDeltas"].Int()
 	bCfg.MaxPageItems = slice.sysconf["plasma.backIndex.pageSplitThreshold"].Int()
@@ -381,6 +382,7 @@ func (slice *plasmaSlice) initStores() error {
 	bCfg.EnablePageBloomFilter = slice.sysconf["plasma.backIndex.enablePageBloomFilter"].Bool()
 	bCfg.BloomFilterFalsePositiveRate = slice.sysconf["plasma.backIndex.bloomFilterFalsePositiveRate"].Float64()
 	bCfg.BloomFilterExpectedMaxItems = slice.sysconf["plasma.backIndex.bloomFilterExpectedMaxItems"].Uint64()
+	bCfg.EnableInMemoryCompression = slice.sysconf["plasma.backIndex.enableInMemoryCompression"].Bool()
 
 	if slice.hasPersistence {
 		mCfg.File = filepath.Join(slice.path, "mainIndex")
@@ -2272,6 +2274,8 @@ func (mdb *plasmaSlice) UpdateConfig(cfg common.Config) {
 	mdb.mainstore.StatsLoggerFileSize = cfg["plasma.stats.logger.fileSize"].Uint64()
 	mdb.mainstore.StatsLoggerFileCount = cfg["plasma.stats.logger.fileCount"].Uint64()
 
+	mdb.mainstore.EnableInMemoryCompression = mdb.sysconf["plasma.mainIndex.enableInMemoryCompression"].Bool()
+
 	mdb.mainstore.UpdateConfig()
 
 	if !mdb.isPrimary {
@@ -2315,6 +2319,8 @@ func (mdb *plasmaSlice) UpdateConfig(cfg common.Config) {
 		mdb.backstore.StatsLoggerFileSize = cfg["plasma.stats.logger.fileSize"].Uint64()
 		mdb.backstore.StatsLoggerFileCount = cfg["plasma.stats.logger.fileCount"].Uint64()
 
+		mdb.backstore.EnableInMemoryCompression = mdb.sysconf["plasma.backIndex.enableInMemoryCompression"].Bool()
+
 		mdb.backstore.UpdateConfig()
 	}
 	mdb.maxRollbacks = cfg["settings.plasma.recovery.max_rollbacks"].Int()