diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 848f69afca7c32..f1ff1995c806d4 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -1023,6 +1023,8 @@ class AnnotatingParser {
       if (Style.isCpp() && CurrentToken && CurrentToken->is(tok::kw_co_await))
         next();
       Contexts.back().ColonIsForRangeExpr = true;
+      if (!CurrentToken || CurrentToken->isNot(tok::l_paren))
+        return false;
       next();
       if (!parseParens())
         return false;
diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index 459cbf1c7681c9..926bf8905c7a6a 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -12113,6 +12113,7 @@ TEST_F(FormatTest, IncorrectCodeMissingParens) {
   verifyFormat("if {\n  foo;\n  foo();\n}");
   verifyFormat("switch {\n  foo;\n  foo();\n}");
   verifyIncompleteFormat("for {\n  foo;\n  foo();\n}");
+  verifyIncompleteFormat("ERROR: for target;");
   verifyFormat("while {\n  foo;\n  foo();\n}");
   verifyFormat("do {\n  foo;\n  foo();\n} while;");
 }