diff --git a/core/class/declarationtva_pdf.class.php b/core/class/declarationtva_pdf.class.php
index 644018d..c654582 100644
--- a/core/class/declarationtva_pdf.class.php
+++ b/core/class/declarationtva_pdf.class.php
@@ -347,6 +347,7 @@ class DeclarationTVA_PDF
         
         // Debug: Log specific amount field values
         error_log("DeclarationTVA: A1_amount will be: " . (isset($ca3_data['A1']) ? $this->formatAmount($ca3_data['A1']['vat_amount']) : '0,00'));
+        error_log("DeclarationTVA: A1 data structure: " . (isset($ca3_data['A1']) ? print_r($ca3_data['A1'], true) : 'A1 not found in ca3_data'));
         error_log("DeclarationTVA: B08_vat_amount will be: " . (isset($ca3_data['08']) ? $this->formatAmount($ca3_data['08']['vat_amount']) : '0,00'));
         error_log("DeclarationTVA: B09_vat_amount will be: " . (isset($ca3_data['09']) ? $this->formatAmount($ca3_data['09']['vat_amount']) : '0,00'));
         error_log("DeclarationTVA: total_vat_collected will be: " . $this->formatAmount($declaration->total_vat_collected));