diff --git a/src/hb-private.hh b/src/hb-private.hh
index d58a695c4..c45be6f2f 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -83,7 +83,7 @@ extern "C" void  hb_free_impl(void *ptr);
 #define unlikely(expr) (expr)
 #endif
 
-#ifndef __GNUC__
+#if !defined(__GNUC__) && !defined(__clang__)
 #undef __attribute__
 #define __attribute__(x)
 #endif