diff --git a/pkg/core/interop_system.go b/pkg/core/interop_system.go
index b20e8a7da..6cbb2109e 100644
--- a/pkg/core/interop_system.go
+++ b/pkg/core/interop_system.go
@@ -69,7 +69,6 @@ func storageDelete(ic *interop.Context) error {
 	if stc.ReadOnly {
 		return errors.New("StorageContext is read only")
 	}
-	ic.VM.AddGas(ic.Chain.GetPolicer().GetStoragePrice())
 	key := ic.VM.Estack().Pop().Bytes()
 	return ic.DAO.DeleteStorageItem(stc.ID, key)
 }
diff --git a/pkg/core/interops.go b/pkg/core/interops.go
index ee99b9eed..6b4e88ac9 100644
--- a/pkg/core/interops.go
+++ b/pkg/core/interops.go
@@ -57,7 +57,7 @@ var systemInterops = []interop.Function{
 	{Name: interopnames.SystemRuntimeNotify, Func: runtime.Notify, Price: 1 << 15, RequiredFlags: callflag.AllowNotify,
 		ParamCount: 2},
 	{Name: interopnames.SystemRuntimePlatform, Func: runtime.Platform, Price: 1 << 3},
-	{Name: interopnames.SystemStorageDelete, Func: storageDelete, Price: 0,
+	{Name: interopnames.SystemStorageDelete, Func: storageDelete, Price: 1 << 15,
 		RequiredFlags: callflag.WriteStates, ParamCount: 2},
 	{Name: interopnames.SystemStorageFind, Func: storageFind, Price: 1 << 15, RequiredFlags: callflag.ReadStates,
 		ParamCount: 3},