diff --git a/third_party/libopenjpeg20/opj_includes.h b/third_party/libopenjpeg20/opj_includes.h
index f855b7c..5add091 100644
--- a/third_party/libopenjpeg20/opj_includes.h
+++ b/third_party/libopenjpeg20/opj_includes.h
@@ -102,12 +102,6 @@
  ==========================================================
 */

-/* Ignore GCC attributes if this is not GCC */
-#ifndef __GNUC__
-       #define __attribute__(x) /* __attribute__(x) */
-#endif
-
-
 /* Are restricted pointers available? (C99) */
 #if (__STDC_VERSION__ != 199901L)
        /* Not a C99 compiler */