diff --git a/.github/workflows/clang-format-check.yml b/.github/workflows/clang-format-check.yml
index a521adf..b801b2d 100644
--- a/.github/workflows/clang-format-check.yml
+++ b/.github/workflows/clang-format-check.yml
@@ -7,10 +7,10 @@ jobs:
     strategy:
       matrix:
         path:
-          - check: './src'    # path to include
-            exclude: ''       # path to exclude
-          - check: './examples'  # path to include
-            exclude: ''          # path to exclude
+          - check: 'src'
+            exclude: ''
+          - check: 'examples'
+            exclude: ''
     steps:
     - uses: actions/checkout@v3.1.0
     - name: Run clang-format style check for C/C++/Protobuf programs.
diff --git a/examples/SCD4x/SCD4x.cpp b/examples/SCD4x/SCD4x.cpp
index 856955f..84c831c 100644
--- a/examples/SCD4x/SCD4x.cpp
+++ b/examples/SCD4x/SCD4x.cpp
@@ -6,8 +6,8 @@
   license information.
 */
 
-#define USING_PAHUB (2) // Connection channel number for use via PaHub.
-#define USING_M5HAL  // When using M5HAL
+#define USING_PAHUB (2)  // Connection channel number for use via PaHub.
+#define USING_M5HAL      // When using M5HAL
 
 #include <M5Unified.h>
 #include <M5UnitUnified.h>
diff --git a/examples/SCD4x/SCD4x.ino b/examples/SCD4x/SCD4x.ino
index c4296e5..535b3b5 100644
--- a/examples/SCD4x/SCD4x.ino
+++ b/examples/SCD4x/SCD4x.ino
@@ -1,3 +1,2 @@
 // setup.loop in SCD4x.cpp
 #include <M5UnitUnified.h>
-
diff --git a/src/M5UnitUnified.hpp b/src/M5UnitUnified.hpp
index 1b9096e..0e52a28 100644
--- a/src/M5UnitUnified.hpp
+++ b/src/M5UnitUnified.hpp
@@ -5,7 +5,7 @@
   @mainpage M5UnitUnfied
   Library for abstracted M5 units.
   C++11 or later.
-  
+
   @copyright M5Stack. All rights reserved.
   @license Licensed under the MIT license. See LICENSE file in the project root
   for full license information.
@@ -33,9 +33,9 @@ class UnitUnified {
 
     ///@name Constructor
     ///@{
-    UnitUnified()                              = default;
-    UnitUnified(const UnitUnified&)            = delete;
-    UnitUnified(UnitUnified&&)                 = default;
+    UnitUnified()                   = default;
+    UnitUnified(const UnitUnified&) = delete;
+    UnitUnified(UnitUnified&&)      = default;
     ///@}
 
     ///@name Assignment
@@ -46,24 +46,26 @@ class UnitUnified {
 
     ///@name Adding unit to be managed
     ///@{
-    //bool add(Component& u, Port& port);
+    // bool add(Component& u, Port& port);
     bool add(Component& u, m5::hal::bus::Bus* bus);
-    //    [[deprecated("use add(Component& u, Port& port) or add(Component& u, m5::hal::bus::Bus* bus);")]]
+    //    [[deprecated("use add(Component& u, Port& port) or add(Component& u,
+    //    m5::hal::bus::Bus* bus);")]]
     bool add(Component& u, TwoWire& wire);
     ///@}
-    
+
     bool begin();
     void update();
 
     //! @brief Output information for debug
     std::string debugInfo() const;
-    
-  protected:
+
+   protected:
     bool add_children(Component& u);
     bool add(Component& u, m5::unit::Adapter* a);
 
-    std::string make_unit_info(const Component* u, const uint8_t indent = 0) const;
-    
+    std::string make_unit_info(const Component* u,
+                               const uint8_t indent = 0) const;
+
    protected:
     container_type _units;