diff --git a/src/app/app.module.ts b/src/app/app.module.ts
index 18a1e78..0523803 100644
--- a/src/app/app.module.ts
+++ b/src/app/app.module.ts
@@ -70,7 +70,12 @@ import {
 } from "./editor/gamesystem-editor/scriptaccount-condition-editor/scriptaccount-condition-editor.component";
 import {CharacterOverviewComponent} from "./side-overviews/character-overview/character-overview.component";
 import {CharacterEditorComponent} from "./editor/character-editor/character-editor.component";
-import {MatAccordion, MatExpansionPanel, MatExpansionPanelTitle} from "@angular/material/expansion";
+import {
+  MatAccordion,
+  MatExpansionPanel,
+  MatExpansionPanelHeader,
+  MatExpansionPanelTitle
+} from "@angular/material/expansion";
 import {
   TemplateSpecificatorComponent
 } from "./editor/gamesystem-editor/template-specificator/template-specificator.component";
@@ -160,7 +165,8 @@ const httpLoaderFactory = (http: HttpClient): TranslateHttpLoader =>  new Transl
     MatAccordion,
     MatExpansionPanel,
     MatExpansionPanelTitle,
-    MatCardTitle
+    MatCardTitle,
+    MatExpansionPanelHeader
   ],
   providers: [],
   bootstrap: [AppComponent]