diff --git a/validation/src/check.rs b/validation/src/check.rs
index 5207cd1..489c9c8 100644
--- a/validation/src/check.rs
+++ b/validation/src/check.rs
@@ -220,7 +220,7 @@ impl std::fmt::Display for StringEmpty{
 	}
 }
 fn check_empty(value:&str)->Result<&str,StringEmpty>{
-	value.is_empty().then_some(value).ok_or(StringEmpty)
+	(!value.is_empty()).then_some(value).ok_or(StringEmpty)
 }
 
 // check for duplicate objects