diff --git a/tests/79-constrained-by-OK.asn1.-EF b/tests/79-constrained-by-OK.asn1.-EF
new file mode 100644
index 0000000000000000000000000000000000000000..0a91f340d4ccacdeeaa8340d86c52adc2b61583c
--- /dev/null
+++ b/tests/79-constrained-by-OK.asn1.-EF
@@ -0,0 +1,11 @@
+ModuleTestConstrainedBy { iso org(3) dod(6) internet(1) private(4) enterprise(1)
+	spelio(9363) software(1) asn1c(5) test(1) 79 }
+DEFINITIONS ::=
+BEGIN
+
+Type ::= SEQUENCE {
+    int	 INTEGER,
+    ...
+} (CONSTRAINED BY { -- nothing -- })
+
+END