diff --git a/src/xdpfw.h b/src/xdpfw.h
index 09ae567..29597cf 100644
--- a/src/xdpfw.h
+++ b/src/xdpfw.h
@@ -128,7 +128,7 @@ struct filter
     struct tcpopts tcpopts;
     struct udpopts udpopts;
     struct icmpopts icmpopts;
-};
+} __attribute__((__aligned__(8)));
 
 struct stats
 {