diff --git a/Digi/Boole/python/Boole/Configuration.py b/Digi/Boole/python/Boole/Configuration.py
index 2d259898cb7519cad201e6008aed184334ebe575..82047d88071d6deabf6afd26ebf0a213e59b2004 100755
--- a/Digi/Boole/python/Boole/Configuration.py
+++ b/Digi/Boole/python/Boole/Configuration.py
@@ -524,7 +524,8 @@ class Boole(LHCbConfigurableUser):
             if "UT" in linkDets:
                 buildMCTrackInfo.WithUT = True
             else:
-                raise RuntimeError("Need one of TT or UT to build MCTrackInfo")
+                buildMCTrackInfo.WithUT = False
+                log.warning("No UT to build MCTrackInfo")
 
             if "FT" in linkDets:
                 buildMCTrackInfo.WithFT = True