diff --git a/gnupg/gpg.conf b/gnupg/gpg.conf
index 87d02e5..0abfb54 100644
--- a/gnupg/gpg.conf
+++ b/gnupg/gpg.conf
@@ -21,3 +21,6 @@ s2k-digest-algo SHA512
 
 # use long keyids because the short ones have collisions
 keyid-format 0xlong
+
+# ask for trust level when signing keys
+ask-cert-level