diff --git a/k4Reco/DDPlanarDigi/options/runDDPlanarDigi.py b/k4Reco/DDPlanarDigi/options/runDDPlanarDigi.py
index 2429b10..7b7a4f0 100644
--- a/k4Reco/DDPlanarDigi/options/runDDPlanarDigi.py
+++ b/k4Reco/DDPlanarDigi/options/runDDPlanarDigi.py
@@ -29,7 +29,7 @@
 id_service = UniqueIDGenSvc("UniqueIDGenSvc")
 
 geoservice = GeoSvc("GeoSvc")
-geoservice.detectors = [os.environ["K4GEO"]+"FCCee/CLD/compact/CLD_o2_v07/CLD_o2_v07.xml"]
+geoservice.detectors = [os.environ["K4GEO"]+"/FCCee/CLD/compact/CLD_o2_v07/CLD_o2_v07.xml"]
 geoservice.OutputLevel = INFO
 geoservice.EnableGeant4Geo = False