diff --git a/tests/gsup/gsup_test.c b/tests/gsup/gsup_test.c
index f1945735f..4ad7431ed 100644
--- a/tests/gsup/gsup_test.c
+++ b/tests/gsup/gsup_test.c
@@ -256,12 +256,6 @@ static void test_gsup_messages_dec_enc(void)
 		0x25, /* OSMO_GSUP_MSGT_MO_FORWARD_SM_ERROR */
 		TEST_IMSI_IE,
 
-		/* Session related IEs */
-		0x30, 0x04, /* Session ID */
-			0xde, 0xad, 0xbe, 0xef,
-		0x31, 0x01, /* Session state (END) */
-			0x03,
-
 		/* SM related IEs */
 		0x40, 0x01, /* SM-RP-MR (Message Reference) */
 			0xfa,
diff --git a/tests/gsup/gsup_test.err b/tests/gsup/gsup_test.err
index 73b35fc5a..225735e9a 100644
--- a/tests/gsup/gsup_test.err
+++ b/tests/gsup/gsup_test.err
@@ -58,8 +58,8 @@
   generated message: 2a 01 08 21 43 65 87 09 21 43 f5 40 01 fa 43 04 de ad be ef 
   original message:  2a 01 08 21 43 65 87 09 21 43 f5 40 01 fa 43 04 de ad be ef 
   IMSI:              123456789012345
-  generated message: 25 01 08 21 43 65 87 09 21 43 f5 30 04 de ad be ef 31 01 03 40 01 fa 44 01 af 
-  original message:  25 01 08 21 43 65 87 09 21 43 f5 30 04 de ad be ef 31 01 03 40 01 fa 44 01 af 
+  generated message: 25 01 08 21 43 65 87 09 21 43 f5 40 01 fa 44 01 af 
+  original message:  25 01 08 21 43 65 87 09 21 43 f5 40 01 fa 44 01 af 
   IMSI:              123456789012345
   generated message: 2c 01 08 21 43 65 87 09 21 43 f5 46 01 02 
   original message:  2c 01 08 21 43 65 87 09 21 43 f5 46 01 02 
@@ -93,7 +93,7 @@
   message 17: tested 33 truncations, 29 parse failures
   message 18: tested 44 truncations, 39 parse failures
   message 19: tested 20 truncations, 18 parse failures
-  message 20: tested 26 truncations, 22 parse failures
+  message 20: tested 17 truncations, 15 parse failures
   message 21: tested 14 truncations, 13 parse failures
   message 22: tested 22 truncations, 21 parse failures
   message 23: tested 14 truncations, 13 parse failures
@@ -119,7 +119,7 @@ DLGSUP Stopping DLGSUP logging
   message 17: tested 8448 modifications, 2053 parse failures
   message 18: tested 11264 modifications, 2307 parse failures
   message 19: tested 5120 modifications, 1031 parse failures
-  message 20: tested 6656 modifications, 1546 parse failures
+  message 20: tested 4352 modifications, 1030 parse failures
   message 21: tested 3584 modifications, 771 parse failures
   message 22: tested 5632 modifications, 771 parse failures
   message 23: tested 3584 modifications, 770 parse failures