diff --git a/tardis/util.py b/tardis/util.py
index 6047f0dc903..31dfbaa32b7 100644
--- a/tardis/util.py
+++ b/tardis/util.py
@@ -428,4 +428,4 @@ def quantity_linspace(start, stop, num, **kwargs):
         raise ValueError('Both start and stop need to be quantities with a '
                          'unit attribute')
 
-    return np.linspace(start.value, stop.to(start.unit).value, num, **kwargs) * start.unit
+    return np.linspace(start.value, stop.to(start.unit).value, num, **kwargs) * start.unit
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