diff --git a/lib/container/ContainerPlugin.js b/lib/container/ContainerPlugin.js
index 528fad6acad..833091047eb 100644
--- a/lib/container/ContainerPlugin.js
+++ b/lib/container/ContainerPlugin.js
@@ -64,7 +64,9 @@ class ContainerPlugin {
 		const { name, exposes, shareScope, filename, library, runtime } =
 			this._options;
 
-		compiler.options.output.enabledLibraryTypes.push(library.type);
+		if (!compiler.options.output.enabledLibraryTypes.includes(library.type)) {
+			compiler.options.output.enabledLibraryTypes.push(library.type);
+		}
 
 		compiler.hooks.make.tapAsync(PLUGIN_NAME, (compilation, callback) => {
 			const dep = new ContainerEntryDependency(name, exposes, shareScope);