diff --git a/stacks/pinot-noir/packages_acc_cuda.yaml b/stacks/pinot-noir/packages_acc_cuda.yaml
index 173f602b5bfac016ac2288fa29bb4b8b552d6c6b..f4eccc4f58d3513614e39f544fcff836ce49268e 100644
--- a/stacks/pinot-noir/packages_acc_cuda.yaml
+++ b/stacks/pinot-noir/packages_acc_cuda.yaml
@@ -49,7 +49,7 @@ packages:
     require: ['+cuda', 'cuda_arch={cuda_arch}']
 
   namd:
-    require: ['+cuda', '+single_node_gpu', 'cuda_arch={cuda_arch}', 'interface=tcl']
+    require: ['+cuda', '+single_node_gpu', 'cuda_arch={cuda_arch}']
 
   nvshmem:
     require:
diff --git a/stacks/pinot-noir/packages_stack.yaml b/stacks/pinot-noir/packages_stack.yaml
index 40744870680efb3d8281400207c627438e2c6ab0..e59f8dcfa4a81786155d750e277053bc8c7a8524 100644
--- a/stacks/pinot-noir/packages_stack.yaml
+++ b/stacks/pinot-noir/packages_stack.yaml
@@ -234,6 +234,9 @@ packages:
   mumps:
     require: ['+openmp', '+metis', '+parmetis']
 
+  namd:
+    require: ['interface=tcl']
+
   netcdf-c:
     prefer: ['+mpi']