diff --git a/lib/docker-sync/sync_strategy/unison.rb b/lib/docker-sync/sync_strategy/unison.rb
index 17c5903..9cf0415 100644
--- a/lib/docker-sync/sync_strategy/unison.rb
+++ b/lib/docker-sync/sync_strategy/unison.rb
@@ -205,7 +205,7 @@ def start_container
         say_status 'ok', "starting initial sync of #{container_name}", :white if @options['verbose']
         # wait until container is started, then sync:
         sync_host_port = get_host_port(get_container_name, UNISON_CONTAINER_PORT)
-        cmd = "unison -testserver #{@options['src']} \"socket://#{@options['sync_host_ip']}:#{sync_host_port}\""
+        cmd = "unison -testserver \"#{@options['src']}\" \"socket://#{@options['sync_host_ip']}:#{sync_host_port}\""
         say_status 'command', cmd, :white if @options['verbose']
         attempt = 0
         max_attempt = @options['max_attempt'] || 5