diff --git a/RelBuild b/RelBuild
index 27b7460a9b..69e6c8bd21 100755
--- a/RelBuild
+++ b/RelBuild
@@ -32,7 +32,7 @@ eval $(gpg-agent --daemon) &&
 GPG_AGENT_PID=$(expr "$GPG_AGENT_INFO" : ".*:\([1-9][0-9]*\):[1-9][0-9]*$") &&
 trap 'kill -0 2>/dev/null $GPG_AGENT_PID && kill $GPG_AGENT_PID' 0 1 2 3 15 &&
 kill -0 "$GPG_AGENT_PID" &&
-gpg="gpg --use-agent" || exit
+gpg="gpg --use-agent --local-user 96AFE6CB!" || exit
 
 sha1sum $files | $gpg --clearsign >git-$version.sign || exit