diff --git a/include/asm-mips/compat.h b/include/asm-mips/compat.h
index 55a0152feb08..432653d7ae09 100644
--- a/include/asm-mips/compat.h
+++ b/include/asm-mips/compat.h
@@ -5,6 +5,7 @@
  */
 #include <linux/types.h>
 #include <asm/page.h>
+#include <asm/ptrace.h>
 
 #define COMPAT_USER_HZ	100