diff --git a/types/webpack/index.d.ts b/types/webpack/index.d.ts
index e8ef101feb..1470966296 100644
--- a/types/webpack/index.d.ts
+++ b/types/webpack/index.d.ts
@@ -1665,7 +1665,7 @@ declare namespace webpack {
     }
 
     class DefinePlugin extends Plugin {
-        constructor(definitions: { [key: string]: DefinePlugin.CodeValuePrimitive});
+        constructor(definitions: {[key: string]: DefinePlugin.CodeValueObject});
         static runtimeValue(
             fn: ({ module }: { module: compilation.Module }) => DefinePlugin.CodeValuePrimitive,
             fileDependencies?: string[]
@@ -1681,6 +1681,7 @@ declare namespace webpack {
             exec(parser: compilation.normalModuleFactory.Parser): CodeValuePrimitive;
         }
         type CodeValuePrimitive = string | number | boolean | RegExp | RuntimeValue | null | undefined;
+        type CodeValueObject = CodeValuePrimitive | {[key: string]: CodeValueObject};
     }
 
     class DllPlugin extends Plugin {
diff --git a/types/webpack/test/index.ts b/types/webpack/test/index.ts
index 682c4d734d..520fbce4ff 100644
--- a/types/webpack/test/index.ts
+++ b/types/webpack/test/index.ts
@@ -446,6 +446,17 @@ plugin = new webpack.DefinePlugin({
     BROWSER_SUPPORTS_HTML5: true,
     TWO: "1+1",
     "typeof window": JSON.stringify("object"),
+    OBJECT: {
+        foo: "bar",
+        bar: {
+            DEEP_RUNTIME: webpack.DefinePlugin.runtimeValue(
+                () => JSON.stringify("DEEP_RUUNTIME")
+            ),
+            foofoo: {
+                barbar: false
+            }
+        }
+    },
     RUNTIME: webpack.DefinePlugin.runtimeValue(
         () => JSON.stringify("TEST_VALUE")
     )