diff --git a/configuration/python/AllenConf/HLT1_LightIon.py b/configuration/python/AllenConf/HLT1_LightIon.py
index aa9ff14721badd95ca6bd9d28571e914ff72e301..ac3fd2c0383f1e7a010fa046eccc6387e0fcdf74 100644
--- a/configuration/python/AllenConf/HLT1_LightIon.py
+++ b/configuration/python/AllenConf/HLT1_LightIon.py
@@ -560,7 +560,7 @@ def setup_hlt1_node(withMCChecking=False,
                 make_velo_micro_bias_line(
                     reconstructed_objects["velo_tracks"],
                     name="Hlt1VeloMicroBias",
-                    pre_scaler=0.15,
+                    pre_scaler=1.,
                     post_scaler=1.,
                     min_velo_tracks=3))
         ]