diff --git a/compiler/types.nim b/compiler/types.nim
index 85b0f9ed0b..3ace332267 100644
--- a/compiler/types.nim
+++ b/compiler/types.nim
@@ -250,7 +250,7 @@ proc containsObject(t: PType): bool =
 
 proc isObjectWithTypeFieldPredicate(t: PType): bool = 
   result = t.kind == tyObject and t.sons[0] == nil and
-      not (t.sym != nil and sfPure in t.sym.flags) and
+      not (t.sym != nil and {sfPure, sfInfixCall} * t.sym.flags != {}) and
       tfFinal notin t.flags
 
 proc analyseObjectWithTypeFieldAux(t: PType,