diff --git a/src/ecogrep.c b/src/ecogrep.c
index ff712a6..5b47b87 100644
--- a/src/ecogrep.c
+++ b/src/ecogrep.c
@@ -22,7 +22,7 @@ void getLineContent(char *stream, ecoseq_t *seq, ecoseq_t *oligoseq_1, ecoseq_t
 				case 0:
 					seq->AC = strdup(buffer);
 					break;
-				case 4:
+				case 2:
 					sscanf(buffer,"%d",&seq->taxid);
 					break;
 				case 13: