diff --git a/backend/gs1.c b/backend/gs1.c
index 9d196342..d1de74bf 100644
--- a/backend/gs1.c
+++ b/backend/gs1.c
@@ -439,7 +439,7 @@ int gs1_verify(struct zint_symbol *symbol, const unsigned char source[], const s
             case 8110: // Coupon code
             case 8112: // Paperless coupon code
             case 8200: // PRODUCT URL
-                if (data_length[i] > 34) {
+                if (data_length[i] > 70) {
                     error_latch = 1;
                 } else {
                     error_latch = 0;