diff --git a/EnvelopeGenerator.Web/wwwroot/js/app.js b/EnvelopeGenerator.Web/wwwroot/js/app.js
index 183d7a67..55b726a0 100644
--- a/EnvelopeGenerator.Web/wwwroot/js/app.js
+++ b/EnvelopeGenerator.Web/wwwroot/js/app.js
@@ -68,8 +68,8 @@ class App {
         this.Instance = await this.UI.loadPSPDFKit(arrayBuffer, this.container)
         this.UI.configurePSPDFKit(this.Instance, this.handleClick.bind(this))
 
-        this.Instance.addEventListener('annotations.load', this.handleAnnotationsLoad)
-        this.Instance.addEventListener('annotations.change', this.handleAnnotationsChange)
+        this.Instance.addEventListener('annotations.load', this.handleAnnotationsLoad.bind(this))
+        this.Instance.addEventListener('annotations.change', this.handleAnnotationsChange.bind(this))
         this.Instance.addEventListener('annotations.create', this.handleAnnotationsCreate.bind(this))
 
         // Load annotations into PSPDFKit