diff --git a/myria3d/pctl/dataset/utils.py b/myria3d/pctl/dataset/utils.py
index 7e6b7370..cde32285 100644
--- a/myria3d/pctl/dataset/utils.py
+++ b/myria3d/pctl/dataset/utils.py
@@ -96,13 +96,12 @@ def get_pdal_reader(las_path: str, epsg: str) -> pdal.Reader.las:
     #     get_metadata(las_path)['metadata']['readers.las']['srs']['compoundwkt']:
     #     # read the lidar file with pdal default
     #     return pdal.Reader.las(filename=las_path)
-    if 'metadata' in get_metadata(las_path):
-        if 'readers.las' in get_metadata(las_path)['metadata']:
-            if 'srs' in get_metadata(las_path)['metadata']['readers.las']:
-                if 'compoundwkt' in get_metadata(las_path)['metadata']['readers.las']['srs']:
-                    if get_metadata(las_path)['metadata']['readers.las']['srs']['compoundwkt']:
-                        # read the lidar file with pdal default
-                        return pdal.Reader.las(filename=las_path)
+    try :
+        if get_metadata(las_path)['metadata']['readers.las']['srs']['compoundwkt']:
+            # read the lidar file with pdal default
+            return pdal.Reader.las(filename=las_path)
+    except:
+        pass # we will go to the "raise exception" anyway
 
     raise Exception("No EPSG provided, neither in the lidar file or as parameter")