diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 71a771fd0f2..6a2a9377648 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -10766,6 +10766,11 @@ any_template_parm_r (tree t, void *data)
 	WALK_SUBTREE (TREE_TYPE (t));
       break;
 
+    case CONVERT_EXPR:
+      if (is_dummy_object (t))
+	WALK_SUBTREE (TREE_TYPE (t));
+      break;
+
     default:
       break;
     }
diff --git a/gcc/testsuite/g++.dg/cpp2a/concepts-this1.C b/gcc/testsuite/g++.dg/cpp2a/concepts-this1.C
new file mode 100644
index 00000000000..d717028201a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp2a/concepts-this1.C
@@ -0,0 +1,30 @@
+// PR c++/103198
+// { dg-do compile { target c++20 } }
+
+template<class T, class = void>
+struct A {
+  T val;
+
+  template<class U>
+    requires requires { val.x; }
+  void f(U);
+
+  static void g(int)
+    requires requires { val.x; };
+
+  void h(int)
+    requires requires { val.x; };
+};
+
+struct B { int x; };
+struct C { };
+
+int main() {
+  A<B>().f(0);
+  A<B>().g(0);
+  A<B>().h(0);
+
+  A<C>().f(0); // { dg-error "no match" }
+  A<C>().g(0); // { dg-error "no match" }
+  A<C>().h(0); // { dg-error "no match" }
+}