diff --git a/include/c_traceback/error.h b/include/c_traceback/error.h
index e36160a..78e3982 100644
--- a/include/c_traceback/error.h
+++ b/include/c_traceback/error.h
@@ -89,4 +89,4 @@ bool ctb_check_error(void);
  */
 void ctb_clear_error(void);
 
-#endif // C_TRACEBACK_ERROR_H
\ No newline at end of file
+#endif // C_TRACEBACK_ERROR_H
diff --git a/include/c_traceback/logging.h b/include/c_traceback/logging.h
index 03fd3cc..8b6d488 100644
--- a/include/c_traceback/logging.h
+++ b/include/c_traceback/logging.h
@@ -191,4 +191,4 @@ void ctb_log_message_fmt(
     ...
 );
 
-#endif // C_TRACEBACK_LOGGING_H
\ No newline at end of file
+#endif // C_TRACEBACK_LOGGING_H
diff --git a/include/c_traceback/signal_handler.h b/include/c_traceback/signal_handler.h
index f45c7a0..fc1aa32 100644
--- a/include/c_traceback/signal_handler.h
+++ b/include/c_traceback/signal_handler.h
@@ -20,4 +20,4 @@ void ctb_install_signal_handler(void);
  */
 void ctb_dump_traceback_signal(const CTB_Error ctb_error);
 
-#endif /* C_TRACEBACK_SIGNAL_HANDLER_H */
\ No newline at end of file
+#endif /* C_TRACEBACK_SIGNAL_HANDLER_H */
diff --git a/include/c_traceback/trace.h b/include/c_traceback/trace.h
index ca9b54f..00dc073 100644
--- a/include/c_traceback/trace.h
+++ b/include/c_traceback/trace.h
@@ -104,4 +104,4 @@ void ctb_push_call_stack_frame(
  */
 void ctb_pop_call_stack_frame(void);
 
-#endif /* C_TRACEBACK_TRACE_H */
\ No newline at end of file
+#endif /* C_TRACEBACK_TRACE_H */
diff --git a/include/c_traceback/traceback.h b/include/c_traceback/traceback.h
index a785e38..cac07bf 100644
--- a/include/c_traceback/traceback.h
+++ b/include/c_traceback/traceback.h
@@ -23,4 +23,4 @@ void ctb_log_traceback(void);
  */
 void ctb_dump_traceback(void);
 
-#endif /* C_TRACEBACK_TRACEBACK_H */
\ No newline at end of file
+#endif /* C_TRACEBACK_TRACEBACK_H */