diff --git a/src/componets/content/ConfigTemplate.tsx b/src/componets/content/ConfigTemplate.tsx
index 28464fb..1055f3c 100644
--- a/src/componets/content/ConfigTemplate.tsx
+++ b/src/componets/content/ConfigTemplate.tsx
@@ -52,7 +52,13 @@ export function ConfigTemplate(props: ConfigTemplateProps) {
     try {
       if (value.trim()) {
         // Replace @placeholders@ with valid JSON values for validation
-        const sanitizedValue = value.replace(/"@?(\w+)@?"/g, '"__PLACEHOLDER__"');
+        // Handle both quoted "@placeholder@" and unquoted @placeholder@
+        let sanitizedValue = value
+          // Replace quoted placeholders: "@host@" -> "__PLACEHOLDER__"
+          .replace(/"@[^"]+@"/g, '"__PLACEHOLDER__"')
+          // Replace unquoted placeholders between : and , or } : @port@ -> "__PLACEHOLDER__"
+          .replace(/:\s*@[^,\s}]+@/g, ': "__PLACEHOLDER__"');
+        
         JSON.parse(sanitizedValue);
         setJsonError(null);
       } else {