diff --git a/digiforest_analysis/src/digiforest_analysis/pipeline.py b/digiforest_analysis/src/digiforest_analysis/pipeline.py
index 1bdd6c8..d9ff65f 100644
--- a/digiforest_analysis/src/digiforest_analysis/pipeline.py
+++ b/digiforest_analysis/src/digiforest_analysis/pipeline.py
@@ -80,10 +80,17 @@ def load_cloud(self, filename):
         assert len(self._cloud.point.positions) > 0
 
         # Compute normals if not available
-        if not hasattr(self._cloud.point, "normals"):
+        try:
+            if not hasattr(self._cloud.point, "normals"):
+                print("No normals found in cloud, computing...", end="")
+                self._cloud.estimate_normals()
+                print("done")
+        except KeyError:
             print("No normals found in cloud, computing...", end="")
             self._cloud.estimate_normals()
             print("done")
+        except Exception as e:
+            print("The following error occurred: " + str(e))
 
     def setup_output(self, output_dir):
         self._output_dir = Path(output_dir)
diff --git a/requirements.txt b/requirements.txt
index 275f758..6a2d2b0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,4 +12,5 @@ shapely
 pyyaml
 ipympl
 open3d>=0.17.0
-pytest
\ No newline at end of file
+pytest
+hdbscan
\ No newline at end of file