diff --git a/toolkit/components/places/src/nsPlacesDBFlush.js b/toolkit/components/places/src/nsPlacesDBFlush.js
index b1a1659762d4..1d0c3cfd98c5 100644
--- a/toolkit/components/places/src/nsPlacesDBFlush.js
+++ b/toolkit/components/places/src/nsPlacesDBFlush.js
@@ -179,7 +179,7 @@ nsPlacesDBFlush.prototype = {
           // Close the database connection, this was the last sync and we can't
           // ensure database coherence from now on.
           this._self._finalizeInternalStatements();
-          this._self._db.asyncClose();
+          this._self._db.close();
         }
       }, Ci.nsIThread.DISPATCH_NORMAL);
     }
diff --git a/toolkit/components/places/tests/sync/test_database_sync_after_shutdown_with_removeAllPages.js b/toolkit/components/places/tests/sync/test_database_sync_after_shutdown_with_removeAllPages.js
index d0cc6934fcfb..bfa202a041ca 100644
--- a/toolkit/components/places/tests/sync/test_database_sync_after_shutdown_with_removeAllPages.js
+++ b/toolkit/components/places/tests/sync/test_database_sync_after_shutdown_with_removeAllPages.js
@@ -139,11 +139,10 @@ function check_results() {
     do_check_false(stmt.executeStep());
     stmt.finalize();
 
-    dbConn.asyncClose(function() {
-      do_check_false(dbConn.connectionReady);
+    dbConn.close();
+    do_check_false(dbConn.connectionReady);
 
-      do_test_finished();
-    });
+    do_test_finished();
 }
 
 function run_test()