diff --git a/illumiprocessor/core.py b/illumiprocessor/core.py
index 0de2046..9ff0d7b 100644
--- a/illumiprocessor/core.py
+++ b/illumiprocessor/core.py
@@ -37,7 +37,7 @@ def __call__(self, parser, namespace, values, option_string=None):
         d = os.path.abspath(os.path.expanduser(values))
         # check to see if directory exists
         if os.path.exists(d):
-            answer = eval(input("[WARNING] Output directory exists, REMOVE [Y/n]? "))
+            answer = input("[WARNING] Output directory exists, REMOVE [Y/n]? ").upper()
             if answer == "Y":
                 shutil.rmtree(d)
             else: