diff --git a/index.php b/index.php
index 942876d..7ba11cf 100644
--- a/index.php
+++ b/index.php
@@ -729,6 +729,11 @@ if ($_SERVER['REQUEST_METHOD'] == "POST") {
             let merekFile = merekInput.files[0]
             let implantFile = implantInput.files[0]
 
+            if (merekFile == undefined || implantFile == undefined || stiker == '' || pendamping == '') {
+                alert('form implant harus diisi')
+                return
+            }
+
             let merekName = merekFile ? merekFile.name : "-"
             let implantName = implantFile ? implantFile.name : "-"