diff --git a/src/ssr/ssr-module.ts b/src/ssr/ssr-module.ts
index 7c943cf2..28a32cd9 100644
--- a/src/ssr/ssr-module.ts
+++ b/src/ssr/ssr-module.ts
@@ -11,13 +11,13 @@ export const SSRModule = (config: string | InjectableConfig & { name: string })
   let name: string
   if (typeof config === 'string') {
     if (configSets.has(config)) {
-      throw new Error(`Duplicated Module name: ${config}`)
+      reportDuplicated(config)
     }
     name = config
     configSets.add(config)
   } else if (config && typeof config.name === 'string') {
     if (configSets.has(config.name)) {
-      throw new Error(`Duplicated Module name: ${config.name}`)
+      reportDuplicated(config.name)
     }
     configSets.add(config.name)
     name = config.name
@@ -33,3 +33,11 @@ export const SSRModule = (config: string | InjectableConfig & { name: string })
     return Injectable(injectableConfig)(target)
   }
 }
+
+function reportDuplicated(moduleName: string) {
+  if (process.env.NODE_ENV === 'production') {
+    throw new Error(`Duplicated Module name: ${moduleName}`)
+  }
+  // avoid to throw error after HMR
+  console.warn(`Duplicated Module name: ${moduleName}`)
+}
diff --git a/test/specs/ssr.spec.tsx b/test/specs/ssr.spec.tsx
index 0cf11960..f52c55d5 100644
--- a/test/specs/ssr.spec.tsx
+++ b/test/specs/ssr.spec.tsx
@@ -107,11 +107,13 @@ describe('SSR specs:', () => {
   beforeAll(() => {
     // @ts-ignore
     process.env.ENABLE_AYANAMI_SSR = 'true'
+    process.env.NODE_ENV = 'production'
   })
 
   afterAll(() => {
     // @ts-ignore
     process.env.ENABLE_AYANAMI_SSR = 'false'
+    delete process.env.NODE_ENV
   })
 
   it('should throw if module name not given', () => {
@@ -172,6 +174,9 @@ describe('SSR specs:', () => {
     expect(generateException1).toThrow()
     expect(generateException2).toThrow()
     expect(generateException3).toThrow()
+    process.env.NODE_ENV = 'development'
+    expect(generateException1).not.toThrow()
+    expect(generateException2).not.toThrow()
   })
 
   it('should run ssr effects', async () => {