diff --git a/FUNDING.yml b/FUNDING.yml
index 39f8add58..f417849fd 100644
--- a/FUNDING.yml
+++ b/FUNDING.yml
@@ -2,4 +2,4 @@
 
 github: soapbox-pub
 liberapay: soapbox
-custom: https://soapbox.pub/donate/
+custom: "https://soapbox.pub/donate/"