diff --git a/cmake/modules/ClangTidy.cmake b/cmake/modules/ClangTidy.cmake
index e514ba623..40f4fc995 100644
--- a/cmake/modules/ClangTidy.cmake
+++ b/cmake/modules/ClangTidy.cmake
@@ -1,34 +1,34 @@
 if(NOT CLANG_TIDY_EXE)
 	include(DoOrFail)
 	find_program_or_fail(CLANG_TIDY_EXE clang-tidy clang-tidy-10 clang-tidy-9 clang-tidy-8)
 
 	execute_process(
 		COMMAND "${CLANG_TIDY_EXE}" -version
 		RESULT_VARIABLE CLANG_TIDY_VERSION_RESULT
 		OUTPUT_VARIABLE CLANG_TIDY_VERSION_OUTPUT
 	)
 
 	string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" CLANG_TIDY_VERSION "${CLANG_TIDY_VERSION_OUTPUT}")
 	if("${CLANG_TIDY_VERSION}" VERSION_LESS "8.0.0")
 		message(FATAL_ERROR "clang-tidy version >= 8 is required")
 	endif()
 
 	message(STATUS "Using clang-tidy: ${CLANG_TIDY_EXE} (version ${CLANG_TIDY_VERSION})")
 endif()
 
-set(CLANG_TIDY_ARGS "${CLANG_TIDY_EXE}" -fix)
+set(CLANG_TIDY_ARGS "${CLANG_TIDY_EXE}" -warnings-as-errors=*)
 
 set(CMAKE_C_CLANG_TIDY ${CLANG_TIDY_ARGS})
 set(CMAKE_CXX_CLANG_TIDY ${CLANG_TIDY_ARGS})
 
 # This is useful to run clang-tidy manually:
 # clang-tidy <file.cpp> -checks=<whatever> -p compile_commands.json
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # Disable for a single target
 macro(target_disable_clang_tidy TARGET)
 	set_target_properties(${TARGET} PROPERTIES
 		C_CLANG_TIDY ""
 		CXX_CLANG_TIDY ""
 	)
 endmacro()