diff --git a/clang-tools-extra/clangd/unittests/FindTargetTests.cpp b/clang-tools-extra/clangd/unittests/FindTargetTests.cpp
--- a/clang-tools-extra/clangd/unittests/FindTargetTests.cpp
+++ b/clang-tools-extra/clangd/unittests/FindTargetTests.cpp
@@ -405,6 +405,11 @@
 }
 
 TEST_F(TargetDeclTest, Concept) {
+  Flags.push_back("-std=c++20");
+
+  // FIXME: Should we truncate the pretty-printed form of a concept decl
+  // somewhere?
+
   Code = R"cpp(
     template <typename T>
     concept Fooable = requires (T t) { t.foo(); };
@@ -414,12 +419,20 @@
       t.foo();
     }
   )cpp";
-  Flags.push_back("-std=c++20");
   EXPECT_DECLS(
       "ConceptSpecializationExpr",
-      // FIXME: Should we truncate the pretty-printed form of a concept decl
-      // somewhere?
       {"template <typename T> concept Fooable = requires (T t) { t.foo(); };"});
+
+  // trailing requires clause
+  Code = R"cpp(
+      template <typename T>
+      concept Fooable = true;
+
+      template <typename T>
+      void foo() requires [[Fooable]]<T>;
+  )cpp";
+  EXPECT_DECLS("ConceptSpecializationExpr",
+               {"template <typename T> concept Fooable = true;"});
 }
 
 TEST_F(TargetDeclTest, FunctionTemplate) {
diff --git a/clang/include/clang/Sema/DeclSpec.h b/clang/include/clang/Sema/DeclSpec.h
--- a/clang/include/clang/Sema/DeclSpec.h
+++ b/clang/include/clang/Sema/DeclSpec.h
@@ -2448,6 +2448,8 @@
   /// \brief Sets a trailing requires clause for this declarator.
   void setTrailingRequiresClause(Expr *TRC) {
     TrailingRequiresClause = TRC;
+
+    SetRangeEnd(TRC->getEndLoc());
   }
 
   /// \brief Sets a trailing requires clause for this declarator.
diff --git a/clang/test/AST/ast-dump-concepts.cpp b/clang/test/AST/ast-dump-concepts.cpp
--- a/clang/test/AST/ast-dump-concepts.cpp
+++ b/clang/test/AST/ast-dump-concepts.cpp
@@ -24,4 +24,13 @@
   // CHECK-NEXT: `-ConceptSpecializationExpr {{.*}} <col:13> 'bool'
   template <unary_concept R>
   Foo(R);
+
+  // CHECK:      FunctionTemplateDecl {{.*}} <line:29:3, line:30:39> {{.*}} Foo<T>
+  template <typename R>
+  Foo(R, int) requires unary_concept<R>;
+
+  // CHECK:      FunctionTemplateDecl {{.*}} <line:33:3, line:35:3> {{.*}} Foo<T>
+  template <typename R>
+  Foo(R, char) requires unary_concept<R> {
+  }
 };