diff --git a/mesmerize_core/caiman_extensions/cnmf.py b/mesmerize_core/caiman_extensions/cnmf.py
index 653ea9d..0cbef07 100644
--- a/mesmerize_core/caiman_extensions/cnmf.py
+++ b/mesmerize_core/caiman_extensions/cnmf.py
@@ -268,6 +268,8 @@ def get_contours(
     ) -> Tuple[List[np.ndarray], List[np.ndarray]]:
         """
         Get the contour and center of mass for each spatial footprint
+        Note, the centers of mass are different from those computed by CaImAn.
+        They are based on the contours and can be used to compute click targets for visualizations.
 
         Parameters
         ----------
@@ -303,10 +305,9 @@ def get_contours(
 
         for contour in contours:
             coors = contour["coordinates"]
-            coors = coors[~np.isnan(coors).any(axis=1)]
             coordinates.append(coors)
 
-            com = coors.mean(axis=0)
+            com = np.nanmean(coors, axis=0)
             coms.append(com)
 
         return coordinates, coms