diff --git a/cloudinary/models.py b/cloudinary/models.py
index d24e3b65..f2436e32 100644
--- a/cloudinary/models.py
+++ b/cloudinary/models.py
@@ -59,7 +59,7 @@ def parse_cloudinary_resource(self, value):
         )
 
     def from_db_value(self, value, expression, connection, context):
-        if value is None:
+        if not value:
             return value
         return self.parse_cloudinary_resource(value)
 
@@ -68,7 +68,7 @@ def to_python(self, value):
             return value
         elif isinstance(value, UploadedFile):
             return value
-        elif value is None:
+        elif not value:
             return value
         else:
             return self.parse_cloudinary_resource(value)