diff --git a/poky/bitbake/lib/prserv/db.py b/poky/bitbake/lib/prserv/db.py
index d6188a6..117d8c0 100644
--- a/poky/bitbake/lib/prserv/db.py
+++ b/poky/bitbake/lib/prserv/db.py
@@ -257,7 +257,7 @@
         self.connection=sqlite3.connect(self.filename, isolation_level="EXCLUSIVE", check_same_thread = False)
         self.connection.row_factory=sqlite3.Row
         self.connection.execute("pragma synchronous = off;")
-        self.connection.execute("PRAGMA journal_mode = WAL;")
+        self.connection.execute("PRAGMA journal_mode = MEMORY;")
         self._tables={}
 
     def disconnect(self):