diff --git a/pypers/formatters.py b/pypers/formatters.py
index fbb4787..3566e74 100644
--- a/pypers/formatters.py
+++ b/pypers/formatters.py
@@ -77,5 +77,5 @@ def get_time_in_seconds(time: str) -> int:
         }
         # Check if last char is in the times dictionary
         if not time[-1].lower() in times:
-            return 0
+            return -1
         return int(time[:-1]) * times[time[-1]]