diff --git a/lib/utf8proc-2a2f97e1/utf8proc.h b/lib/utf8proc-2a2f97e1/utf8proc.h
index 64155a1..2fca528 100644
--- a/lib/utf8proc-2a2f97e1/utf8proc.h
+++ b/lib/utf8proc-2a2f97e1/utf8proc.h
@@ -120,17 +120,7 @@ typedef bool utf8proc_bool;
 #endif
 #include <limits.h>
 
-#ifdef _WIN32
-#  ifdef UTF8PROC_EXPORTS
-#    define UTF8PROC_DLLEXPORT __declspec(dllexport)
-#  else
-#    define UTF8PROC_DLLEXPORT __declspec(dllimport)
-#  endif
-#elif __GNUC__ >= 4
-#  define UTF8PROC_DLLEXPORT __attribute__ ((visibility("default")))
-#else
-#  define UTF8PROC_DLLEXPORT
-#endif
+#define UTF8PROC_DLLEXPORT
 
 #ifdef __cplusplus
 extern "C" {