diff --git a/src/system-sleep/converge-wake b/src/system-sleep/converge-wake
index d92ab68..ec5db4c 100755
--- a/src/system-sleep/converge-wake
+++ b/src/system-sleep/converge-wake
@@ -9,6 +9,6 @@ if [ "$1" = "post" ]; then
     # hook only needs to request the start.
     loginctl list-users --no-legend 2>/dev/null | while read uid name rest; do
         [ "$uid" -ge 1000 ] 2>/dev/null || continue
-        su "$name" -c "XDG_RUNTIME_DIR=/run/user/$uid systemctl --user start converge-wake.service" 2>/dev/null || true
+        su "$name" -c "XDG_RUNTIME_DIR=/run/user/$uid systemctl --user --no-block start converge-wake.service" 2>/dev/null || true
     done
 fi