diff --git a/libavutil/x86/emms.h b/libavutil/x86/emms.h
index 809a23b05b..a529b6bbbe 100644
--- a/libavutil/x86/emms.h
+++ b/libavutil/x86/emms.h
@@ -21,6 +21,7 @@
 
 #include "config.h"
 #include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
 
 void avpriv_emms_yasm(void);