diff --git a/contrib/release.sh b/contrib/release.sh
index 8cd521ead..c3c92cf3b 100755
--- a/contrib/release.sh
+++ b/contrib/release.sh
@@ -66,6 +66,8 @@ if [ "$GPGUSER" == "ThomasV" ]; then
 elif [ "$GPGUSER" == "sombernight_releasekey" ]; then
     PUBKEY="--local-user 0EEDCFD5CAFB459067349B23CA9EEEC43DF911DC"
     export SSHUSER=sombernight
+else
+    warn "unexpected GPGUSER=$GPGUSER"
 fi