matrix47

diff --git a/prototypes/robots/py-construction-robot-01.lua b/prototypes/robots/py-construction-robot-01.lua
index 68e6483..581da97 100644
--- a/prototypes/robots/py-construction-robot-01.lua
+++ b/prototypes/robots/py-construction-robot-01.lua
@@ -1,3 +1,5 @@
+local sounds = require "__base__/prototypes/entity/demo-sounds"
+
 RECIPE {
     type = 'recipe',
     name = 'py-construction-robot-01',