diff --git a/Makefile b/Makefile
index 06a9ab8..c298ff8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 cppch = cppcheck
-cppch_args = --language=c++ --std=c++20 --enable=all --verbose ./*.{cpp,h}
+cppch_args = --language=c++ --std=c++20 --enable=all --verbose --suppress=unmatchedSuppression --suppress=missingIncludeSystem ./*.{cpp,h}
 cpp_flags = CMAKE_CXX_FLAGS=
 c = cmake
 c_args = -G Ninja -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_BUILD_TYPE=