diff --git a/config/updateall/scripts/70-git b/config/updateall/scripts/70-git
index 1a1dce6..56e916a 100755
--- a/config/updateall/scripts/70-git
+++ b/config/updateall/scripts/70-git
@@ -1,5 +1,9 @@
 #!/bin/sh -ex
 
+if [ -z "$SSH_AGENT_PID" ]; then
+    exec ssh-agent "$0" "$@"
+fi
+
 ssh-add
 
 update_repo() {