diff --git a/NAMESPACE b/NAMESPACE
index 534a396dce2cbc1ca55db3e929ec0b9b96a6bbf1..e4900b00d75b2433bad66b152e505ad54ed0063d 100755
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -48,7 +48,7 @@ export(hydroPSO,
        rastrigin,
        rosenbrock,
        schafferF6,
-       schwefel
+       schwefel,
        sphere,
        sackley,
        sgriewank,