diff --git a/backend/templates/admin_products.html b/backend/templates/admin_products.html
index 7b1b1be..a177012 100644
--- a/backend/templates/admin_products.html
+++ b/backend/templates/admin_products.html
@@ -1884,13 +1884,15 @@
         if (!capturedImageData) { alert('촬영된 이미지가 없습니다'); return; }
         const code = imgModalBarcode || imgModalDrugCode;
         const name = imgModalName;
-        closeImageModal();
+        const drugCode = imgModalDrugCode;
+        const imageData = capturedImageData;  // 먼저 저장!
+        closeImageModal();  // 이 후 capturedImageData = null 됨
         showToast(`"${name}" 이미지 저장 중...`);
         try {
             const res = await fetch(`/api/admin/product-images/${code}/upload`, {
                 method: 'POST',
                 headers: { 'Content-Type': 'application/json' },
-                body: JSON.stringify({ image_data: capturedImageData, product_name: name, drug_code: imgModalDrugCode })
+                body: JSON.stringify({ image_data: imageData, product_name: name, drug_code: drugCode })
             });
             const data = await res.json();
             if (data.success) { showToast('✅ 이미지 저장 완료!', 'success'); searchProducts(); }