diff --git a/.github/linters/.ls-lint.yml b/.github/linters/.ls-lint.yml
new file mode 100644
index 000000000..f0492cc6b
--- /dev/null
+++ b/.github/linters/.ls-lint.yml
@@ -0,0 +1,12 @@
+ls:
+  .c: snake_case
+  .cpp: snake_case
+  .h: snake_case
+  .json: snake_case
+  .rb: snake_case
+  .yaml: regex:\.?[a-z]+(-[a-z]+)*
+  .yml: regex:\.?[a-z]+(-[a-z]+)*
+
+ignore:
+  - build_config
+  - mrbgems/mruby-compiler/core/y.tab.c
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 290d7e232..97f419d09 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -25,3 +25,11 @@ jobs:
           key: pre-commit|${{ env.PY }}|${{ hashFiles('.pre-commit-config.yaml') }}
       - name: Run pre-commit
         run: pre-commit run --all-files
+  ls-lint:
+    name: Run ls-lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ls-lint/action@v2.3.0
+        with:
+          config: .github/linters/.ls-lint.yml
diff --git a/mrbgems/mruby-bin-strip/bintest/mruby-strip.rb b/mrbgems/mruby-bin-strip/bintest/mruby_strip.rb
similarity index 100%
rename from mrbgems/mruby-bin-strip/bintest/mruby-strip.rb
rename to mrbgems/mruby-bin-strip/bintest/mruby_strip.rb
diff --git a/mrbgems/mruby-bin-strip/tools/mruby-strip/mruby-strip.c b/mrbgems/mruby-bin-strip/tools/mruby-strip/mruby_strip.c
similarity index 100%
rename from mrbgems/mruby-bin-strip/tools/mruby-strip/mruby-strip.c
rename to mrbgems/mruby-bin-strip/tools/mruby-strip/mruby_strip.c
diff --git a/mrbgems/mruby-exit/src/mruby-exit.c b/mrbgems/mruby-exit/src/mruby_exit.c
similarity index 100%
rename from mrbgems/mruby-exit/src/mruby-exit.c
rename to mrbgems/mruby-exit/src/mruby_exit.c
diff --git a/mrbgems/mruby-hash-ext/src/hash-ext.c b/mrbgems/mruby-hash-ext/src/hash_ext.c
similarity index 100%
rename from mrbgems/mruby-hash-ext/src/hash-ext.c
rename to mrbgems/mruby-hash-ext/src/hash_ext.c
diff --git a/mrbgems/mruby-object-ext/test/object-ext.c b/mrbgems/mruby-object-ext/test/object_ext.c
similarity index 100%
rename from mrbgems/mruby-object-ext/test/object-ext.c
rename to mrbgems/mruby-object-ext/test/object_ext.c
diff --git a/mrbgems/mruby-proc-binding/src/proc-binding.c b/mrbgems/mruby-proc-binding/src/proc_binding.c
similarity index 100%
rename from mrbgems/mruby-proc-binding/src/proc-binding.c
rename to mrbgems/mruby-proc-binding/src/proc_binding.c
diff --git a/mrbgems/mruby-proc-binding/test/proc-binding.c b/mrbgems/mruby-proc-binding/test/proc_binding.c
similarity index 100%
rename from mrbgems/mruby-proc-binding/test/proc-binding.c
rename to mrbgems/mruby-proc-binding/test/proc_binding.c
diff --git a/mrbgems/mruby-proc-binding/test/proc-binding.rb b/mrbgems/mruby-proc-binding/test/proc_binding.rb
similarity index 100%
rename from mrbgems/mruby-proc-binding/test/proc-binding.rb
rename to mrbgems/mruby-proc-binding/test/proc_binding.rb