diff --git a/hledger/test/errors/balancednoautoconversion.j b/hledger/test/errors/balancednoautoconversion.j
new file mode 100755
index 000000000..2189e1edc
--- /dev/null
+++ b/hledger/test/errors/balancednoautoconversion.j
@@ -0,0 +1,8 @@
+#!/usr/bin/env -S hledger check balancednoautoconversion -f
+# Show the error when balancedwithautoconversion is required
+# and an implicit commodity conversion is found.
+# Currently the same as the regular balancedwithautoconversion error.
+
+1/1
+  a   1 A
+  b  -1 B