diff --git a/lib/signal_reader/parsers/iso15693/iso15693_parser.c b/lib/signal_reader/parsers/iso15693/iso15693_parser.c
index a2c6912e637..e47c734a279 100644
--- a/lib/signal_reader/parsers/iso15693/iso15693_parser.c
+++ b/lib/signal_reader/parsers/iso15693/iso15693_parser.c
@@ -243,6 +243,8 @@ static Iso15693ParserCommand iso15693_parser_parse_1_out_of_256(Iso15693Parser*
                             instance->parsed_frame, instance->next_byte_part * 4 + j / 2);
                     }
                 }
+            } else {
+                instance->zero_found = true;
             }
         }
         instance->next_byte_part = (instance->next_byte_part + 1) % 64;