diff --git a/exercises/practice/resistor-color-duo/example.sml b/exercises/practice/resistor-color-duo/example.sml
deleted file mode 100644
index 6139910..0000000
--- a/exercises/practice/resistor-color-duo/example.sml
+++ /dev/null
@@ -1,2 +0,0 @@
-fun value (colors: string list): int =
-  raise Fail "'value' is not implemented"
\ No newline at end of file