diff --git a/tests/55-components-of-OK.asn1.-EF b/tests/55-components-of-OK.asn1.-EF
index b7b227f..fb2f76d 100644
--- a/tests/55-components-of-OK.asn1.-EF
+++ b/tests/55-components-of-OK.asn1.-EF
@@ -5,7 +5,7 @@
 
 OneType ::= SEQUENCE {
     one-1	 INTEGER,
-    one-2	 [1] EXPLICIT BOOLEAN,
+    one-2	 [1] IMPLICIT BOOLEAN,
     one-3	 SEQUENCE {
         alpha	 [0] IMPLICIT INTEGER,    
         beta	 [1] IMPLICIT INTEGER,    
diff --git a/tests/86-atags-OK.asn1 b/tests/86-atags-OK.asn1
new file mode 100644
index 0000000..afd0585
--- /dev/null
+++ b/tests/86-atags-OK.asn1
@@ -0,0 +1,20 @@
+
+-- OK: Everything is fine
+
+-- iso.org.dod.internet.private.enterprise (1.3.6.1.4.1)
+-- .spelio.software.asn1c.test (9363.1.5.1)
+-- .86
+
+ModuleAutoTags
+	{ iso org(3) dod(6) internet (1) private(4) enterprise(1)
+		spelio(9363) software(1) asn1c(5) test(1) 86 }
+	DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+
+	A ::= SEQUENCE { a INTEGER }
+	B ::= SEQUENCE { a [0] INTEGER }
+	C ::= SEQUENCE { a [0] IMPLICIT INTEGER }
+	D ::= SEQUENCE { a [0] EXPLICIT INTEGER }
+	E ::= SEQUENCE { a [0] CHOICE { b INTEGER } }
+
+END
diff --git a/tests/86-atags-OK.asn1.-EF b/tests/86-atags-OK.asn1.-EF
new file mode 100644
index 0000000..ebadd3a
--- /dev/null
+++ b/tests/86-atags-OK.asn1.-EF
@@ -0,0 +1,28 @@
+ModuleAutoTags { iso org(3) dod(6) internet(1) private(4) enterprise(1)
+	spelio(9363) software(1) asn1c(5) test(1) 86 }
+DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+
+A ::= SEQUENCE {
+    a	 [0] IMPLICIT INTEGER
+}
+
+B ::= SEQUENCE {
+    a	 [0] IMPLICIT INTEGER
+}
+
+C ::= SEQUENCE {
+    a	 [0] IMPLICIT INTEGER
+}
+
+D ::= SEQUENCE {
+    a	 [0] EXPLICIT INTEGER
+}
+
+E ::= SEQUENCE {
+    a	 [0] EXPLICIT CHOICE {
+        b	 [0] IMPLICIT INTEGER
+    }
+}
+
+END