diff --git a/unilabos_msgs/action/LiquidHandlerAspirate.action b/unilabos_msgs/action/LiquidHandlerAspirate.action
index 3784d943..9ba17068 100644
--- a/unilabos_msgs/action/LiquidHandlerAspirate.action
+++ b/unilabos_msgs/action/LiquidHandlerAspirate.action
@@ -1,12 +1,11 @@
-# Bio
 Resource[] resources
 float64[] vols
 int32[] use_channels
 float64[] flow_rates
-float64 end_delay
 geometry_msgs/Point[] offsets
 float64[] liquid_height
 float64[] blow_out_air_volume
+string spread
 ---
 bool success
 ---
\ No newline at end of file