diff --git a/libavutil/libm.h b/libavutil/libm.h
index c9d188b4d9..996486c36c 100644
--- a/libavutil/libm.h
+++ b/libavutil/libm.h
@@ -26,6 +26,7 @@
 
 #include <math.h>
 #include "config.h"
+#include "attributes.h"
 
 #if !HAVE_EXP2
 #undef exp2