diff --git a/mingw-w64-headers/crt/_mingw.h.in b/mingw-w64-headers/crt/_mingw.h.in
index c1caae6..01eff66 100644
--- a/mingw-w64-headers/crt/_mingw.h.in
+++ b/mingw-w64-headers/crt/_mingw.h.in
@@ -86,8 +86,7 @@
 #elif defined(_MSC_VER)
 # define __CRT_INLINE __inline
 #else
-# if ( __MINGW_GNUC_PREREQ(4, 3)  &&  __STDC_VERSION__ >= 199901L) \
-     || (defined (__clang__))
+# if ((__MINGW_GNUC_PREREQ(4, 3) || defined(__clang__)) && __STDC_VERSION__ >= 199901L)
 #  define __CRT_INLINE extern inline __attribute__((__gnu_inline__))
 # else
 #  define __CRT_INLINE extern __inline__