diff --git a/NAMESPACE b/NAMESPACE
index 3792ba9..8bde9cb 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -7,3 +7,4 @@ export(confint_Deriv)
 export(get_Breaks)
 export(refit_Growth)
 import(mgcv)
+useDynLib(sptlVB_Sel_Sigma)