diff --git a/gen/functions.cpp b/gen/functions.cpp
index eaa4e25a..9684fbc5 100644
--- a/gen/functions.cpp
+++ b/gen/functions.cpp
@@ -117,6 +117,12 @@ const llvm::FunctionType* DtoFunctionType(Type* type, Type* thistype, Type* nest
                 lidx++;
             }
         }
+#if DMDV2
+        else
+        {
+            fty.c_vararg = true;
+        }
+#else
         else if (f->linkage == LINKc)
         {
             fty.c_vararg = true;
@@ -126,6 +132,7 @@ const llvm::FunctionType* DtoFunctionType(Type* type, Type* thistype, Type* nest
             type->error(0, "invalid linkage for variadic function");
             fatal();
         }
+#endif
     }
 
     // if this _Dmain() doesn't have an argument, we force it to have one