diff --git a/app/Http/Controllers/KuesionerController.php b/app/Http/Controllers/KuesionerController.php
index 9fe86cd..8b4d78d 100644
--- a/app/Http/Controllers/KuesionerController.php
+++ b/app/Http/Controllers/KuesionerController.php
@@ -355,6 +355,17 @@ class KuesionerController extends Controller
                 $level = 6;
             }
 
+            if (@$request->hasFile('file_usulan')) {
+                $file = $request->file('file_usulan');
+                $fileExtension = $file->getClientOriginalExtension();
+                if($fileExtension != 'pdf'){
+                    return redirect()->back()->with([
+                        'message' => 'Maaf File Harus Berupa PDF!',
+                        'type'    => "error"
+                    ]);   
+                }
+            }
+
             if (@$request->hasFile('tim_adiwiyata_link')) {
                 $file = $request->file('tim_adiwiyata_link');
                 $destinationPath = public_path('uploads/tim_adiwiyata');