Initial revision
diff --git a/tests/26-sequence-SE.asn1 b/tests/26-sequence-SE.asn1
new file mode 100644
index 0000000..8c5866a
--- /dev/null
+++ b/tests/26-sequence-SE.asn1
@@ -0,0 +1,20 @@
+
+-- SE: Semantic error
+
+-- iso.org.dod.internet.private.enterprise (1.3.6.1.4.1)
+-- .spelio.software.asn1c.test (9363.1.5.1)
+-- .26
+
+ModuleTestSequenceTagsDistinct
+ { iso org(3) dod(6) internet(1) private(4) enterprise(1)
+ spelio(9363) software(1) asn1c(5) test(1) 26 }
+ DEFINITIONS IMPLICIT TAGS ::=
+BEGIN
+
+ T ::= SEQUENCE {
+ a INTEGER,
+ b INTEGER OPTIONAL,
+ c INTEGER
+ }
+
+END