diff --git a/compiler/jsgen.nim b/compiler/jsgen.nim
index 0ac779822b..be529072c1 100644
--- a/compiler/jsgen.nim
+++ b/compiler/jsgen.nim
@@ -1223,6 +1223,7 @@ proc genPatternCall(p: PProc; n: PNode; pat: string; typ: PType;
                     r: var TCompRes) =
   var i = 0
   var j = 1
+  r.kind = resExpr
   while i < pat.len:
     case pat[i]
     of '@':