diff --git a/testing/errors/alreadydefined6.a b/testing/errors/alreadydefined6.a
new file mode 100644
index 0000000..760a707
--- /dev/null
+++ b/testing/errors/alreadydefined6.a
@@ -0,0 +1,3 @@
+;ACME 0.97
+	a = "somestring"
+	a = "someotherstring"	; -> "already defined" (value has changed)