diff --git a/ggsn_tests/GGSN_Tests.ttcn b/ggsn_tests/GGSN_Tests.ttcn
index bffdd4c..bef7949 100644
--- a/ggsn_tests/GGSN_Tests.ttcn
+++ b/ggsn_tests/GGSN_Tests.ttcn
@@ -474,7 +474,7 @@
 		T_default.stop;
 	}
 
-	function f_pdp_ctx_del(PdpContext ctx, template BIT1 teardown_ind, OCT1 expect_causevalue := '80'O) runs on GT_CT {
+	function f_pdp_ctx_del(PdpContext ctx, template BIT1 teardown_ind, OCT1 expect_causevalue := '80'O, boolean expect_diameter := true) runs on GT_CT {
 		var Gtp1cUnitdata ud;
 		var default d;
 		var OCT4 expect_teid;
@@ -490,7 +490,7 @@
 		f_send_gtpc(ts_GTPC_DeletePDP(g_peer_c, g_c_seq_nr, ctx.teic_remote, ctx.nsapi, teardown_ind));
 		T_default.start;
 		d := activate(pingpong());
-		if (DIAMETER_PROC.checkstate("Connected")) {
+		if (DIAMETER_PROC.checkstate("Connected") and expect_diameter) {
 			as_DIA_CCR(TERMINATION_REQUEST);
 		}
 		alt {
@@ -1771,11 +1771,11 @@
 		   duplicate. If it was not a duplicate, osmo-ggsn would answer
 		   with a failure since that PDP ctx was already deleted. */
 		g_c_seq_nr := g_c_seq_nr - 1;
-		f_pdp_ctx_del(ctx, '1'B);
+		f_pdp_ctx_del(ctx, '1'B, expect_diameter := false);
 
 		/* Now send a new pdp ctx del (increased seqnum). It should fail with cause "non-existent": */
 		var OCT1 cause_nonexistent := 'C0'O;
-		f_pdp_ctx_del(ctx, '1'B, cause_nonexistent);
+		f_pdp_ctx_del(ctx, '1'B, cause_nonexistent, expect_diameter := false);
 	}
 
 	/* Activate PDP context + trigger Recovery procedure through EchoResp */