diff --git a/routes/api.py b/routes/api.py
index 748b131..61a79aa 100644
--- a/routes/api.py
+++ b/routes/api.py
@@ -157,8 +157,8 @@ def vapid_public_key():
     # Join the split lines to remove all whitespace and newlines
     base64_key = "".join(match.group(1).split())
     
-    # Convert to URL-safe base64 for the PushManager API
-    url_safe_key = base64_key.replace('+', '-').replace('/', '_')
+    # Convert to URL-safe base64 and remove padding for the PushManager API
+    url_safe_key = base64_key.replace('+', '-').replace('/', '_').rstrip('=')
     
     return jsonify({"public_key": url_safe_key})