diff --git a/src/tt/utils.py b/src/tt/utils.py
index 600f942..860beb3 100644
--- a/src/tt/utils.py
+++ b/src/tt/utils.py
@@ -51,7 +51,7 @@ def get_colored_category(category: str) -> str:
 
 
 def get_colored_date(date: datetime.date) -> str:
-    if not date:
+    if not isinstance(date, datetime.date):
         return ""
     as_str = date.strftime("%Y-%m-%d")
     today = datetime.date.today()