diff --git a/modules/light-clients/08-wasm/types/types_test.go b/modules/light-clients/08-wasm/types/types_test.go
index 2548c1fb5237..79ddb3b1c5dc 100644
--- a/modules/light-clients/08-wasm/types/types_test.go
+++ b/modules/light-clients/08-wasm/types/types_test.go
@@ -252,10 +252,21 @@ func (suite *WasmTestSuite) TestUpdateWasmCodeIdWithErrors() {
 	_, err = suite.wasmKeeper.UpdateWasmCodeId(suite.ctx, msgUpdate)
 	suite.Require().Error(err)
 
+	// test non-existing code id
+	nonExistingCodeId := make([]byte, 32)
+	msgUpdate = wasmtypes.NewMsgUpdateWasmCodeId(signer, nonExistingCodeId, "08-wasm-0")
+	_, err = suite.wasmKeeper.UpdateWasmCodeId(suite.ctx, msgUpdate)
+	suite.Require().Error(err)
+
 	// test invalid client id
 	msgUpdate = wasmtypes.NewMsgUpdateWasmCodeId(signer, newCodeId, "invalid")
 	_, err = suite.wasmKeeper.UpdateWasmCodeId(suite.ctx, msgUpdate)
 	suite.Require().Error(err)
+
+	// test non-existing client id
+	msgUpdate = wasmtypes.NewMsgUpdateWasmCodeId(signer, newCodeId, "00-nonexist")
+	_, err = suite.wasmKeeper.UpdateWasmCodeId(suite.ctx, msgUpdate)
+	suite.Require().Error(err)
 }
 
 func (suite *WasmTestSuite) TestQueryWasmCode() {