diff --git a/packages/@ngtools/webpack/src/angular_compiler_plugin.ts b/packages/@ngtools/webpack/src/angular_compiler_plugin.ts
index 326ef8b98044..a27b0009cf3f 100644
--- a/packages/@ngtools/webpack/src/angular_compiler_plugin.ts
+++ b/packages/@ngtools/webpack/src/angular_compiler_plugin.ts
@@ -135,9 +135,13 @@ export class AngularCompilerPlugin implements Tapable {
     if (!this._entryModule) {
       return undefined;
     }
-    const splitted = this._entryModule.split('#');
+    const splitted = this._entryModule.split(/(#[a-zA-Z]+)/);
     const path = splitted[0];
-    const className = splitted[1] || 'default';
+    let className = splitted[1] || 'default';
+    if (splitted.length >= 3) {
+      className = splitted[splitted.length - 2];
+    }
+
     return { path, className };
   }