diff --git a/src/lib.rs b/src/lib.rs
index d462246..7635135 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -41,7 +41,7 @@ use chrono::{NaiveDate, NaiveTime};
 pub use parse::{parse, GgaData, GsaData, GsvData, ParseResult, RmcData, RmcStatusOfFix, VtgData};
 
 /// NMEA parser
-#[derive(Default)]
+#[derive(Default, Debug)]
 pub struct Nmea {
     pub fix_time: Option<NaiveTime>,
     pub fix_date: Option<NaiveDate>,
@@ -359,12 +359,6 @@ impl<'a> Nmea {
     }
 }
 
-impl fmt::Debug for Nmea {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{:?}", self)
-    }
-}
-
 impl fmt::Display for Nmea {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(
diff --git a/tests/file_log_parser.rs b/tests/file_log_parser.rs
index 1183084..00f50b7 100644
--- a/tests/file_log_parser.rs
+++ b/tests/file_log_parser.rs
@@ -37,3 +37,22 @@ fn test_parse_file_log() {
             .collect();
     assert_eq!(expected, res);
 }
+
+#[test]
+fn test_parse_issue_2() {
+    let mut input = BufReader::new(File::open(&Path::new("tests").join("nmea2.log")).unwrap());
+    let mut nmea = nmea::Nmea::new();
+    for _ in 0..100 {
+        let mut buffer = String::new();
+        let size = input.read_line(&mut buffer).unwrap();
+        eprintln!("buffer = {:?}", buffer);
+        if size > 0 {
+            if buffer.as_bytes()[0] == b'$' {
+                let _ = nmea.parse(&buffer);
+                println!("{:?}", nmea);
+            }
+        } else {
+            break;
+        }
+    }
+}
diff --git a/tests/nmea2.log b/tests/nmea2.log
new file mode 100644
index 0000000..efa313e
--- /dev/null
+++ b/tests/nmea2.log
@@ -0,0 +1,37 @@
+$GNVTG,,,,,,,,,N*2E
+$GNGNS,181604.00,,,,,NN,00,99.99,,,,*59
+$GNGGA,181604.00,,,,,0,00,99.99,,,,,,*72
+$GNGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*2E
+$GNGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*2E
+$GPGSV,4,1,13,02,35,291,,03,09,129,,05,14,305,,06,38,226,*7D
+$GPGSV,4,2,13,07,56,177,,09,70,067,,16,20,055,,23,41,076,*77
+$GPGSV,4,3,13,26,10,030,,29,05,341,,30,26,199,,36,30,158,*7E
+$GPGSV,4,4,13,49,32,192,*4D
+$GLGSV,3,1,10,66,45,091,,67,67,334,,68,17,297,,75,13,025,*68
+$GLGSV,3,2,10,76,49,059,,77,40,156,,78,00,183,,82,15,246,*68
+$GLGSV,3,3,10,83,28,298,,84,10,352,*6F
+$GNGLL,,,,,181604.00,V,N*5E
+$GNGRS,181604.00,1,,,,,,,,,,,,*5A
+$GNGRS,181604.00,1,,,,,,,,,,,,*5A
+$GNGST,181604.00,0.0000,,,,5773795,5773795,5773794*4F
+$GNZDA,181604.00,12,09,2018,00,00*73
+$GNGBS,181604.00,,,,,,,*7B
+$GNTXT,01,01,02,u-blox AG - www.u-blox.com*4E
+$GNTXT,01,01,02,HW UBX-M8030 00080000*60
+$GNTXT,01,01,02,EXT CORE 3.01 (107900)*33
+$GNTXT,01,01,02,ROM BASE 3.01 (107888)*25
+$GNTXT,01,01,02,FWVER=SPG 3.01*46
+$GNTXT,01,01,02,PROTVER=18.00*11
+$GNTXT,01,01,02,MOD=NEO-M8N-0*67
+$GNTXT,01,01,02,FIS=0xC22536 (100111)*28
+$GNTXT,01,01,02,GPS;GLO;GAL;BDS*77
+$GNTXT,01,01,02,SBAS;IMES;QZSS*49
+$GNTXT,01,01,02,GNSS OTP=GPS;GLO*37
+$GNTXT,01,01,02,LLC=FFFFFFFF-FFFFFFED-FFFFFFFF-FFFFFFFF-FFFFFF69*23
+$GNTXT,01,01,02,ANTSUPERV=AC SD PDoS SR*3E
+$GNTXT,01,01,02,ANTSTATUS=OK*25
+$GNTXT,01,01,02,PF=3FF*4B
+$GNVTG,,,,,,,,,N*2E
+$GNGNS,181605.00,,,,,NN,00,99.99,,,,*58
+$GNGGA,181605.00,,,,,0,00,99.99,,,,,,*73
+