1 files changed, 20 insertions, 0 deletions
diff --git a/tests/js/t11354.nim b/tests/js/t11354.nim
new file mode 100644
index 000000000..8dee90de0
--- /dev/null
+++ b/tests/js/t11354.nim
@@ -0,0 +1,20 @@
+discard """
+  output: '''
+0
+@[@[0, 1]]
+'''
+"""
+
+type
+  TrackySeq[T] = object
+    s: seq[T]
+    pos: int
+
+proc foobar(ls: var TrackySeq[seq[int]], i: int): var seq[int] =
+  echo ls.pos  # removing this, or making the return explicit works
+  ls.s[i]
+
+var foo: TrackySeq[seq[int]]
+foo.s.add(@[0])
+foo.foobar(0).add(1)
+echo foo.s
\ No newline at end of file