diff --git a/SimPEG/Fields.py b/SimPEG/Fields.py
index 1801bedc..d9da317d 100644
--- a/SimPEG/Fields.py
+++ b/SimPEG/Fields.py
@@ -141,11 +141,8 @@ class Fields(object):
             # Aliased fields
             alias, loc, func = self.aliasFields[name]
 
-            srcII   = np.array(self.survey.srcList)[ind]
-            if isinstance(srcII, np.ndarray):
-                srcII = srcII.tolist()
-            if len(srcII) == 1:
-                srcII = srcII[0]
+            srcII = np.array(self.survey.srcList)[ind]
+            srcII = srcII.tolist()
 
             if type(func) is str:
                 assert hasattr(self, func), 'The alias field function is a string, but it does not exist in the Fields class.'