diff --git a/spearmint/tasks/input_space.py b/spearmint/tasks/input_space.py
index c0ec685..71a7c7a 100644
--- a/spearmint/tasks/input_space.py
+++ b/spearmint/tasks/input_space.py
@@ -284,8 +284,10 @@ def paramify_and_print(self, data_vector, left_indent=0, indent_top_row=True):
 
             if param['type'] == 'float':
                 format_str = '%s%-12.12s  %-9.9s  %-12f'
-            else:
+            elif param['type'] == 'int':
                 format_str = '%s%-12.12s  %-9.9s  %-12d'
+            else:
+                format_str = '%s%-12.12s  %-9.9s  %-12s'
 
             for i in xrange(len(param['values'])):
                 if i == 0: