diff --git a/src/PostProcessors/DataLabeling.py b/src/PostProcessors/DataLabeling.py
index 7f1b00c..6a3520b 100644
--- a/src/PostProcessors/DataLabeling.py
+++ b/src/PostProcessors/DataLabeling.py
@@ -190,6 +190,6 @@ def run(self, inputIn):
               dimsDict[self.label] = dims
             break
         outputDict[self.label].append(np.asarray([label]*historySize))
-    outputDict[self.label] = np.asarray(outputDict[self.label])
+    outputDict[self.label] = np.asarray(outputDict[self.label], dtype=object)
     outputDict = {'data': outputDict, 'dims':targetDict['dims']}
     return outputDict