diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 7e9ce69fa..c0c0596dd 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -9,7 +9,7 @@ repos:
   - id: check-yaml
   - id: check-added-large-files
 - repo: https://github.com/pre-commit/mirrors-clang-format
-  rev: v19.1.7
+  rev: v20.1.0
   hooks:
   - id: clang-format
     types_or: [c++, c]
diff --git a/test/lexer_test.cpp b/test/lexer_test.cpp
index 715c46081..0189699bb 100644
--- a/test/lexer_test.cpp
+++ b/test/lexer_test.cpp
@@ -293,7 +293,10 @@ int TEST_NAME(int, char**) {
        "'wonder'+0 : 'prowonderbread'+3 --> 6");
 
 // Test all Lexer types.
-#define NO {"", Lexer::Type::word}
+#define NO                \
+  {                       \
+    "", Lexer::Type::word \
+  }
   struct {
     const char* input;
     struct {