diff --git a/src/app/shared/testing/css-variable-service.stub.ts b/src/app/shared/testing/css-variable-service.stub.ts
index 47be5c0ff4..2f5c647945 100644
--- a/src/app/shared/testing/css-variable-service.stub.ts
+++ b/src/app/shared/testing/css-variable-service.stub.ts
@@ -21,7 +21,7 @@ export class CSSVariableServiceStub {
     /**/
   }
 
-  addCSSVariables(variables: KeyValuePair<string, string>[]): void {
+  addCSSVariables(variablesToAdd: KeyValuePair<string, string>[]): void {
     /**/
   }