diff --git a/lvm_read.py b/lvm_read.py
index fd65a7d..34e8e23 100644
--- a/lvm_read.py
+++ b/lvm_read.py
@@ -141,7 +141,7 @@ def to_float(a):
         segment_nr -= 1
     lvm_data['Segments'] = segment_nr
     for s in range(segment_nr):
-        lvm_data[s]['data'] = np.asarray(lvm_data[s]['data'])
+        lvm_data[s]['data'] = np.asarray(lvm_data[s]['data'], dtype="object")
     return lvm_data