diff --git a/src/myx/base/config.hpp b/src/myx/base/config.hpp
index 3a32591..aaf9a7f 100644
--- a/src/myx/base/config.hpp
+++ b/src/myx/base/config.hpp
@@ -15,12 +15,14 @@
 #else
 #define MYXLIB_API
 #endif
-#define MYXLIB_INLINE inline
+#define MYXLIB_INLINE inline // NOLINT
 #else
+#ifndef MYXLIB_HEADER_ONLY
 #define MYXLIB_HEADER_ONLY
+#endif
 #define MYXLIB_API
 #define MYXLIB_INLINE inline
-#endif
+#endif // ifdef MYXLIB_BUILD_LIBRARIES
 
 #ifdef MYXLIB_HEADER_ONLY
 #include "config-inl.hpp"