diff --git a/dune/gfe/riemannianpnsolver.hh b/dune/gfe/riemannianpnsolver.hh
index c640311b70967899f924cd934169b3b74c5bf3b3..b3584fdf9b8553e0311a671d8e3b14732fd3e5f8 100644
--- a/dune/gfe/riemannianpnsolver.hh
+++ b/dune/gfe/riemannianpnsolver.hh
@@ -89,7 +89,8 @@ public:
 
     void solve();
 
-    void setInitialSolution(const SolutionType& x) DUNE_DEPRECATED {
+    [[deprecated]] 
+    void setInitialSolution(const SolutionType& x) {
         x_ = x;
     }
 
diff --git a/dune/gfe/riemanniantrsolver.hh b/dune/gfe/riemanniantrsolver.hh
index 959bb499d859fcafb80f1ff3471015962c51256f..86f6a30cc0c7bd85ec956eaac80ae0516e95b134 100644
--- a/dune/gfe/riemanniantrsolver.hh
+++ b/dune/gfe/riemanniantrsolver.hh
@@ -145,7 +145,8 @@ public:
 
     void solve();
 
-    void setInitialSolution(const SolutionType& x) DUNE_DEPRECATED {
+    [[deprecated]]
+    void setInitialSolution(const SolutionType& x) {
         x_ = x;
     }