diff --git a/.ci/clang-tidy.sh b/.ci/clang-tidy.sh
index b0c6745..913c79a 100755
--- a/.ci/clang-tidy.sh
+++ b/.ci/clang-tidy.sh
@@ -7,7 +7,7 @@ IFS='
 '
 filelist="$(find . -not \( -path './*build*' -prune \) -type f ! -name "$(printf "*\n*")")"
 for file in $filelist; do
-  if echo "$file" | grep -q -E ".*\.cpp$" ; then
+  if echo "$file" | grep -q -E ".*(\.cpp|\.h|\.hpp)$" ; then
     #Extra check missing dependencies due to clang-tidy doesn't toggle exit code.
     clang_tidy_lib_check="$(clang-tidy -warnings-as-errors='*' -header-filter='.*,-cpptoml.hpp' -checks='*,-llvm-header-guard,-fuchsia-statically-constructed-objects,-fuchsia-default-arguments,-fuchsia-default-arguments-calls,-cppcoreguidelines-pro-bounds-pointer-arithmetic,-cppcoreguidelines-pro-bounds-constant-array-index,-bugprone-narrowing-conversions,-cppcoreguidelines-narrowing-conversions,-cppcoreguidelines-pro-type-const-cast,-cppcoreguidelines-pro-type-reinterpret-cast,-hicpp-signed-bitwise,-bugprone-exception-escape,-cppcoreguidelines-pro-type-member-init,-cppcoreguidelines-pro-type-cstyle-cast,-hicpp-member-init' "$file" -- -I. -std=c++14 2>&1)"
     for tidy_line in $clang_tidy_lib_check; do