diff --git a/compiler/tests/21_model_delay_test.py b/compiler/tests/21_model_delay_test.py
index 5a6d1ce3..681f4fff 100755
--- a/compiler/tests/21_model_delay_test.py
+++ b/compiler/tests/21_model_delay_test.py
@@ -93,7 +93,7 @@ class model_delay_test(openram_test):
         else:
             self.assertTrue(False) # other techs fail
 
-        debug.info(3, 'spice_delays {}'.fomrat(spice_delays))
+        debug.info(3, 'spice_delays {}'.format(spice_delays))
         debug.info(3, 'model_delays {}'.format(model_delays))
 
         # Check if no too many or too few results