diff --git a/xybrid/nodelib/svfilter.h b/xybrid/nodelib/svfilter.h
index 695646e..70fa803 100644
--- a/xybrid/nodelib/svfilter.h
+++ b/xybrid/nodelib/svfilter.h
@@ -44,8 +44,8 @@ namespace Xybrid::NodeLib {
     };
 
     // explicit instantiation declarations to eliminate warnings
-    //template<> void Xybrid::NodeLib::GenericSVFilter<Data::AudioFrame>::process(Data::AudioFrame, double, double, int);
-    //template<> void Xybrid::NodeLib::GenericSVFilter<double>::process(double, double, double, int);
+    extern template void Xybrid::NodeLib::GenericSVFilter<Data::AudioFrame>::process(Data::AudioFrame, double, double, int);
+    extern template void Xybrid::NodeLib::GenericSVFilter<double>::process(double, double, double, int);
 
     /// 12db Chamberlin State Variable Filter
     typedef GenericSVFilter<Data::AudioFrame> SVFilter;