diff --git a/cmake/common/clang-tidy.cmake b/cmake/common/clang-tidy.cmake
index 025251e37..7967f1044 100644
--- a/cmake/common/clang-tidy.cmake
+++ b/cmake/common/clang-tidy.cmake
@@ -98,7 +98,8 @@ function(sourcemeta_clang_tidy_attempt_enable)
         NO_DEFAULT_PATH
         PATHS "${PROJECT_BINARY_DIR}/bin"
         REQUIRED)
-    set(CLANG_TIDY_CONFIG "${CMAKE_CURRENT_FUNCTION_LIST_DIR}/clang-tidy.config")
+
+    set(CLANG_TIDY_CONFIG "${CMAKE_CURRENT_FUNCTION_LIST_DIR}/clang-tidy.json")
     execute_process(COMMAND xcrun --show-sdk-path
         OUTPUT_VARIABLE MACOSX_SDK_PATH OUTPUT_STRIP_TRAILING_WHITESPACE)
     execute_process(COMMAND "${CMAKE_CXX_COMPILER}" -print-resource-dir
diff --git a/cmake/common/clang-tidy.config b/cmake/common/clang-tidy.json
similarity index 100%
rename from cmake/common/clang-tidy.config
rename to cmake/common/clang-tidy.json
diff --git a/cmake/common/targets/clang-format.cmake b/cmake/common/targets/clang-format.cmake
index 55fbb6cdc..7868fceb0 100644
--- a/cmake/common/targets/clang-format.cmake
+++ b/cmake/common/targets/clang-format.cmake
@@ -101,7 +101,7 @@ function(sourcemeta_target_clang_format)
   file(GLOB_RECURSE SOURCEMETA_TARGET_CLANG_FORMAT_FILES
     ${SOURCEMETA_TARGET_CLANG_FORMAT_SOURCES})
 
-  set(CLANG_FORMAT_CONFIG "${CMAKE_CURRENT_FUNCTION_LIST_DIR}/clang-format.config")
+  set(CLANG_FORMAT_CONFIG "${CMAKE_CURRENT_FUNCTION_LIST_DIR}/clang-format.json")
   if(CMAKE_SYSTEM_NAME STREQUAL "MSYS")
     # Because `clang-format` is typically a Windows `.exe`, transform the path accordingly
     execute_process(COMMAND cygpath -w "${CLANG_FORMAT_CONFIG}"
diff --git a/cmake/common/targets/clang-format.config b/cmake/common/targets/clang-format.config
deleted file mode 100644
index d9c695cc9..000000000
--- a/cmake/common/targets/clang-format.config
+++ /dev/null
@@ -1,3 +0,0 @@
----
-BasedOnStyle: LLVM
-IndentCaseLabels: true
diff --git a/cmake/common/targets/clang-format.json b/cmake/common/targets/clang-format.json
new file mode 100644
index 000000000..7e760c01e
--- /dev/null
+++ b/cmake/common/targets/clang-format.json
@@ -0,0 +1,4 @@
+{
+  "BasedOnStyle": "LLVM",
+  "IndentCaseLabels": true
+}