Add a missing typename

diff --git a/examples/step-64/step-64.cc b/examples/step-64/step-64.cc
index 3962daf896a4f3e50c91e157ee25dfd96878b77c..30a68604aa3ab00313e6cecbd42d38f0c6ab8925 100644 (file)
--- a/examples/step-64/step-64.cc
+++ b/examples/step-64/step-64.cc
@@ -136,8 +136,8 @@ namespace Step64
       Portable::FEEvaluation<dim, fe_degree, fe_degree + 1, 1, double> *fe_eval,
       const int q_point) const;
 
-    DEAL_II_HOST_DEVICE void
-    set_matrix_free_data(const Portable::MatrixFree<dim, double>::Data &data)
+    DEAL_II_HOST_DEVICE void set_matrix_free_data(
+      const typename Portable::MatrixFree<dim, double>::Data &data)
     {
       gpu_data = &data;
     }