diff --git a/object/wellknown_attributes.go b/object/wellknown_attributes.go
index c1fc833..efece38 100644
--- a/object/wellknown_attributes.go
+++ b/object/wellknown_attributes.go
@@ -9,6 +9,15 @@ const (
 	// file name to be associated with the object on saving.
 	AttributeFileName = "FileName"
 
+	// AttributeFilePath is an attribute key that is commonly used to denote
+	// full path to be associated with the object on saving. Should start with a
+	// '/' and use '/' as a delimiting symbol. Trailing '/' should be
+	// interpreted as a virtual directory marker. If an object has conflicting
+	// FilePath and FileName, FilePath should have higher priority, because it
+	// is used to construct the directory tree. FilePath with trailing '/' and
+	// non-empty FileName attribute should not be used together.
+	AttributeFilePath = "FilePath"
+
 	// AttributeTimestamp is an attribute key that is commonly used to denote
 	// user-defined local time of object creation in Unix Timestamp format.
 	AttributeTimestamp = "Timestamp"