diff --git a/src/ecoprimer.c b/src/ecoprimer.c
index ae3ee15..cc0d6d0 100644
--- a/src/ecoprimer.c
+++ b/src/ecoprimer.c
@@ -500,7 +500,7 @@ static void printAC(pecodnadb_t seqdb,uint32_t seqdbsize)
 	uint32_t i;
 
 	for (i=0; i< seqdbsize;i++)
-		printf("%15s (%8dbp): %s\n",seqdb[i]->AC,seqdb[i]->SQ_length,seqdb[i]->DE);
+		printf("%15s (%8d bp ): %s\n",seqdb[i]->AC,seqdb[i]->SQ_length,seqdb[i]->DE);
 }
 
 int main(int argc, char **argv)