diff --git a/src/gifread/gifread.c b/src/gifread/gifread.c
index b24aa6e..2896493 100644
--- a/src/gifread/gifread.c
+++ b/src/gifread/gifread.c
@@ -357,6 +357,7 @@ static int LZWGetCode(int code_size, int init_flag, FILE *stream)
     {
         curbit = 0;
         lastbit = 0;
+        last_byte = 2;
         done = LZW_FALSE;
         return 0;
     }