diff --git a/gtests/net/packetdrill/tests/linux/sctp/api_tests/cmsgs/sendmsg_sctp_init.pkt b/gtests/net/packetdrill/tests/linux/sctp/api_tests/cmsgs/sendmsg_sctp_init.pkt
index 3f00c4ffc186061ffb6f0119af85be933bdf8a79..d87f6a972ca2a4e4950a31eb550c175181cbcf54 100644
--- a/gtests/net/packetdrill/tests/linux/sctp/api_tests/cmsgs/sendmsg_sctp_init.pkt
+++ b/gtests/net/packetdrill/tests/linux/sctp/api_tests/cmsgs/sendmsg_sctp_init.pkt
@@ -8,7 +8,7 @@
 
 +0.0 sendmsg(3, {msg_name(...)=...,
 		 msg_iov(1)=[{iov_base=..., iov_len=1000}],
-		 msg_control(20)=[{cmsg_len=20,
+		 msg_control(24)=[{cmsg_len=24,
 				   cmsg_level=IPPROTO_SCTP,
 				   cmsg_type=SCTP_INIT,
 				   cmsg_data={sinit_num_ostreams=1,
diff --git a/gtests/net/packetdrill/tests/linux/sctp/api_tests/cmsgs/sendmsg_sctp_sndrcv.pkt b/gtests/net/packetdrill/tests/linux/sctp/api_tests/cmsgs/sendmsg_sctp_sndrcv.pkt
index 9f57a3ca70a6f4a10d5c200f59783b3eda7548c2..a67602a4e69d850df352eae99acb1abbaa9ac90d 100644
--- a/gtests/net/packetdrill/tests/linux/sctp/api_tests/cmsgs/sendmsg_sctp_sndrcv.pkt
+++ b/gtests/net/packetdrill/tests/linux/sctp/api_tests/cmsgs/sendmsg_sctp_sndrcv.pkt
@@ -25,7 +25,7 @@
 							 spp_dscp=0}, 152) = 0
 +0.0 sendmsg(3, {msg_name(...)=...,
 		 msg_iov(1)=[{iov_base=..., iov_len=1000}],
-		 msg_control(44)=[{cmsg_len=44,
+		 msg_control(48)=[{cmsg_len=48,
 				    cmsg_level=IPPROTO_SCTP,
 				    cmsg_type=SCTP_SNDRCV,
 				    cmsg_data={sinfo_stream=3,
@@ -44,7 +44,7 @@
 //test for sndrcvinfo
 +0.0 sendmsg(3, {msg_name(...)=...,
 		 msg_iov(1)=[{iov_base=..., iov_len=1000}],
-		 msg_control(44)=[{cmsg_len=44,
+		 msg_control(48)=[{cmsg_len=48,
 				    cmsg_level=IPPROTO_SCTP,
 				    cmsg_type=SCTP_SNDRCV,
 				    cmsg_data={sinfo_stream=3,
@@ -62,7 +62,7 @@
 
 +0.0 sendmsg(3, {msg_name(...)=...,
 		 msg_iov(1)=[{iov_base=..., iov_len=1000}],
-		 msg_control(44)=[{cmsg_len=44,
+		 msg_control(48)=[{cmsg_len=48,
 				    cmsg_level=IPPROTO_SCTP,
 				    cmsg_type=SCTP_SNDRCV,
 				    cmsg_data={sinfo_stream=3,
@@ -80,7 +80,7 @@
 
 +0.0 sendmsg(3, {msg_name(...)=...,
 		 msg_iov(1)=[{iov_base=..., iov_len=1000}],
-		 msg_control(44)=[{cmsg_len=44,
+		 msg_control(48)=[{cmsg_len=48,
 				    cmsg_level=IPPROTO_SCTP,
 				    cmsg_type=SCTP_SNDRCV,
 				    cmsg_data={sinfo_stream=3,