diff --git a/VerifyingSignatures.md b/VerifyingSignatures.md
index e08b1ee2..d9219c44 100644
--- a/VerifyingSignatures.md
+++ b/VerifyingSignatures.md
@@ -71,6 +71,10 @@ You can also download all the currently used developer's keys (and also a copy o
 
 The developer keys are set to be valid for 1 year only, while the Qubes Master Signing Key has no expiration date. This key has been generated and is kept only within a special 'vault' machine that has no networking, and the private portion (hopefully) is never to leave this isolated machine.
 
+Having problems verifying the ISO? See this thread:
+
+[​https://groups.google.com/group/qubes-devel/browse\_thread/thread/4bdec1cd19509b38/9f8e219c41e1b232](https://groups.google.com/group/qubes-devel/browse_thread/thread/4bdec1cd19509b38/9f8e219c41e1b232)
+
 Verifying Qubes code
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