diff --git a/signature.py b/signature.py
index 07222d9..90de66a 100644
--- a/signature.py
+++ b/signature.py
@@ -23,6 +23,9 @@ def verify_sign(data, gpg_rcode, gpg_status, gpg_output=""):
         if "EXPSIG" in ctx:
             yield MailTest("The signature has expired.", 1)
             return
+        if "REVKEYSIG" in ctx:
+            yield MailTest("Your key is revoked.", 1)
+            return
         if "TRUST_NEVER" in ctx:
             yield MailTest("Your trust level is %s." % ctx["TRUST_NEVER"], 1)
             return