diff --git a/assets/css/backend.css b/assets/css/backend.css
index 7012be4b..35ff6ffc 100644
--- a/assets/css/backend.css
+++ b/assets/css/backend.css
@@ -267,7 +267,7 @@ body legend {
     margin-bottom: 20px;
 }
 
-.record-details input:read-only,
+.record-details input:read-only:not(input[type="checkbox"]),
 .record-details select:disabled,
 .record-details textarea:read-only {
     opacity: 0.85;