diff --git a/src/assemblers/kernel_interface.jl b/src/assemblers/kernel_interface.jl
index e16b3d6..9dc1742 100644
--- a/src/assemblers/kernel_interface.jl
+++ b/src/assemblers/kernel_interface.jl
@@ -150,7 +150,7 @@ kernel = ContinuumKernel(
 ndofs = dofs_per_node(kernel)  # Returns 3
 ```
 """
-function dofs_per_node end
+# Note: dofs_per_node function stub is defined in fields/api.jl
 
 # Default implementation: delegate to field
 """