diff --git a/include/asm-x86_64/mmsegment.h b/include/asm-x86_64/mmsegment.h
new file mode 100644
index 0000000..d3f80c9
--- /dev/null
+++ b/include/asm-x86_64/mmsegment.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_MMSEGMENT_H
+#define _ASM_MMSEGMENT_H 1
+
+typedef struct {
+	unsigned long seg;
+} mm_segment_t;
+
+#endif