diff --git a/chain/vm/runtime.go b/chain/vm/runtime.go
index 6e36e8e87..5dc175726 100644
--- a/chain/vm/runtime.go
+++ b/chain/vm/runtime.go
@@ -546,9 +546,10 @@ func (rt *Runtime) chargeGasInternal(gas GasCharge, skip int) aerrors.ActorError
 
 	// overflow safe
 	if rt.gasUsed > rt.gasAvailable-toUse {
+		gasUsed := rt.gasUsed
 		rt.gasUsed = rt.gasAvailable
-		return aerrors.Newf(exitcode.SysErrOutOfGas, "not enough gas: used=%d, available=%d",
-			rt.gasUsed, rt.gasAvailable)
+		return aerrors.Newf(exitcode.SysErrOutOfGas, "not enough gas: used=%d, available=%d, use=%d",
+			gasUsed, rt.gasAvailable, toUse)
 	}
 	rt.gasUsed += toUse
 	return nil