1 files changed, 3 insertions, 0 deletions
diff --git a/ethvm/vm.go b/ethvm/vm.go
index 0fb97e652..8d58ffcb7 100644
--- a/ethvm/vm.go
+++ b/ethvm/vm.go
@@ -694,3 +694,6 @@ func (self *Vm) Env() Environment {
 func (self *Vm) Depth() int {
 	return self.depth
 }
+
+func (self *Vm) Printf(format string, v ...interface{}) VirtualMachine { return self }
+func (self *Vm) Endl() VirtualMachine                                  { return self }