diff --git a/wire/core/Inputfield.php b/wire/core/Inputfield.php
index 7b4bfe0a..6468967e 100644
--- a/wire/core/Inputfield.php
+++ b/wire/core/Inputfield.php
@@ -1404,7 +1404,7 @@ abstract class Inputfield extends WireData implements Module {
 				continue;
 			}
 
-			$str .= "$attr=\"" . htmlspecialchars($value, ENT_QUOTES, "UTF-8") . '" ';
+			$str .= "$attr=\"" . htmlspecialchars("$value", ENT_QUOTES, "UTF-8") . '" ';
 		}
 
 		return trim($str);