diff --git a/clang-tools-extra/clangd/SemanticHighlighting.cpp b/clang-tools-extra/clangd/SemanticHighlighting.cpp
--- a/clang-tools-extra/clangd/SemanticHighlighting.cpp
+++ b/clang-tools-extra/clangd/SemanticHighlighting.cpp
@@ -542,6 +542,11 @@
     return Base::TraverseConstructorInitializer(Init);
   }
 
+  bool VisitPredefinedExpr(PredefinedExpr *E) {
+    H.addToken(E->getLocation(), HighlightingKind::Macro);
+    return true;
+  }
+
   bool VisitCallExpr(CallExpr *E) {
     // Highlighting parameters passed by non-const reference does not really
     // make sense for literals...
diff --git a/clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp b/clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp
--- a/clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp
+++ b/clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp
@@ -841,6 +841,12 @@
             $Function_deprecated[[Foo]]($Parameter[[x]]); 
         }
       )cpp",
+      // Predefined identifiers
+      R"cpp(
+        void $Function_decl[[Foo]]() {
+            const char *$LocalVariable_decl_readonly[[s]] = $Macro[[__func__]];
+        }
+      )cpp",
       // Explicit template specialization
       R"cpp(
         struct $Class_decl[[Base]]{};