diff --git a/compiler/typekeys.nim b/compiler/typekeys.nim
index 06e633b317..d1c77ec3fe 100644
--- a/compiler/typekeys.nim
+++ b/compiler/typekeys.nim
@@ -274,7 +274,7 @@ proc typeKey(c: var Context; t: PType; flags: set[ConsiderFlag]; conf: ConfigRef
       c.typeKey(t.sonsImpl[0], flags-{CoIgnoreRange}, conf)
   else:
     withTree c.m, toNifTag(t.kind):
-      for i in 1..<t.sonsImpl.len:
+      for i in 0..<t.sonsImpl.len:
         c.typeKey t.sonsImpl[i], flags, conf
       if tfNotNil in t.flagsImpl and CoType notin flags:
         c.m.addIdent "´notnil"
diff --git a/tests/ic/tenum.nim b/tests/ic/tmiscs.nim
similarity index 63%
rename from tests/ic/tenum.nim
rename to tests/ic/tmiscs.nim
index 30fd3cbd1f..21e4c20daf 100644
--- a/tests/ic/tenum.nim
+++ b/tests/ic/tmiscs.nim
@@ -1,6 +1,8 @@
 discard """
-  disabled: "linux"
-  output: "42"
+  output: '''
+42
+5
+'''
 """
 
 # Object variant / case object
@@ -20,3 +22,14 @@ proc newInt(v: int): ref Node =
 
 let n = newInt(42)
 echo n.intVal
+
+# Sink and move semantics
+type
+  BigObj = object
+    data: seq[int]
+
+proc consume(x: sink BigObj) =
+  echo x.data.len
+
+var b = BigObj(data: @[1, 2, 3, 4, 5])
+consume(move b)
\ No newline at end of file