diff --git a/v1/v1.py b/v1/v1.py
index f40fd97..42188ae 100644
--- a/v1/v1.py
+++ b/v1/v1.py
@@ -28,6 +28,7 @@ class NVCCPlugin(Magics):
             stmt = f"subprocess.check_output(['{file_path}.out'], stderr=subprocess.STDOUT)"
             output = self.shell.run_cell_magic(
                 magic_name="timeit", line="-q -o import subprocess", cell=stmt)
+            output = str(output) # convert TimeitResult object to human readable string
         else:
             output = subprocess.check_output(
                 [file_path + ".out"], stderr=subprocess.STDOUT)