diff --git a/core/class/declarationtva.class.php b/core/class/declarationtva.class.php
index 6dd1596..24a8868 100644
--- a/core/class/declarationtva.class.php
+++ b/core/class/declarationtva.class.php
@@ -1270,6 +1270,12 @@ class DeclarationTVA
         $pattern = $month_dir . 'CA3_' . $obj->declaration_number . '_*.pdf';
         $files = glob($pattern);
         
+        // If no files found with the exact pattern, try a more flexible search
+        if (empty($files)) {
+            $pattern = $month_dir . 'CA3_*' . $obj->declaration_number . '*.pdf';
+            $files = glob($pattern);
+        }
+        
         return !empty($files) && file_exists($files[0]);
     }
     
@@ -1306,6 +1312,12 @@ class DeclarationTVA
         $pattern = $month_dir . 'CA3_' . $obj->declaration_number . '_*.pdf';
         $files = glob($pattern);
         
+        // If no files found with the exact pattern, try a more flexible search
+        if (empty($files)) {
+            $pattern = $month_dir . 'CA3_*' . $obj->declaration_number . '*.pdf';
+            $files = glob($pattern);
+        }
+        
         if (!empty($files) && file_exists($files[0])) {
             return $files[0];
         }