diff --git a/src/txdb.h b/src/txdb.h
index e526b0c62..cc5ae0c66 100644
--- a/src/txdb.h
+++ b/src/txdb.h
@@ -20,7 +20,7 @@ struct CDiskTxPos;
 class uint256;
 
 //! -dbcache default (MiB)
-static const int64_t nDefaultDbCache = 300;
+static const int64_t nDefaultDbCache = 100;
 //! max. -dbcache (MiB)
 static const int64_t nMaxDbCache = sizeof(void*) > 4 ? 16384 : 1024;
 //! min. -dbcache (MiB)