diff --git a/pkg/vm/vm.go b/pkg/vm/vm.go
index 33859b91c..5cc6b872a 100644
--- a/pkg/vm/vm.go
+++ b/pkg/vm/vm.go
@@ -317,7 +317,9 @@ func (v *VM) loadScriptWithCallingHash(b []byte, exe *nef.File, caller util.Uint
 
 	v.checkInvocationStackSize()
 	ctx := NewContextWithParams(b, rvcount, offset)
-	v.estack = newStack("evaluation", &v.refs)
+	if rvcount != -1 || v.estack.Len() != 0 {
+		v.estack = newStack("evaluation", &v.refs)
+	}
 	ctx.estack = v.estack
 	initStack(&ctx.tryStack, "exception", nil)
 	ctx.callFlag = f