diff --git a/tests/sets/tsets_lt.nim b/tests/sets/tsets_lt.nim
new file mode 100644
index 000000000..6d0b3a60c
--- /dev/null
+++ b/tests/sets/tsets_lt.nim
@@ -0,0 +1,12 @@
+discard """
+  output: '''true
+true
+true'''
+"""
+
+var s, s1: set[char]
+s = {'a'..'d'}
+s1 = {'a'..'c'}
+echo s1 < s
+echo s1 * s == {'a'..'c'}
+echo s1 <= s