diff --git a/arm/warm.h b/arm/warm.h
index a3fdd6b..d36367a 100644
--- a/arm/warm.h
+++ b/arm/warm.h
@@ -72,7 +72,7 @@ void warm_finish(void);
 /* internal */
 #ifdef WARM_CODE
 
-#include <linux/ioctl.h>
+#include <sys/ioctl.h>
 
 #define WARM_IOCTL_BASE 'A'