diff --git a/bin/sh/tests/parser/Makefile b/bin/sh/tests/parser/Makefile
index b5ac5661063b..60b0e43ca7b0 100644
--- a/bin/sh/tests/parser/Makefile
+++ b/bin/sh/tests/parser/Makefile
@@ -22,6 +22,7 @@ ${PACKAGE}FILES+=	alias12.0
 ${PACKAGE}FILES+=	alias13.0
 ${PACKAGE}FILES+=	alias14.0
 ${PACKAGE}FILES+=	alias15.0 alias15.0.stdout
+${PACKAGE}FILES+=	alias16.0
 ${PACKAGE}FILES+=	and-pipe-not.0
 ${PACKAGE}FILES+=	case1.0
 ${PACKAGE}FILES+=	case2.0
diff --git a/bin/sh/tests/parser/alias16.0 b/bin/sh/tests/parser/alias16.0
new file mode 100644
index 000000000000..2df9c254e57d
--- /dev/null
+++ b/bin/sh/tests/parser/alias16.0
@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+v=1
+alias a='unalias a
+v=2'
+eval a
+[ "$v" = 2 ]