diff --git a/bwamem.c b/bwamem.c
index 7c837bf..e75a3c4 100644
--- a/bwamem.c
+++ b/bwamem.c
@@ -584,7 +584,7 @@ void bwa_hit2sam(kstring_t *str, const int8_t mat[25], int q, int r, int w, cons
 	}
 	if (p->score >= 0) { kputsn("\tAS:i:", 6, str); kputw(p->score, str); }
 	if (p->sub >= 0) { kputsn("\tXS:i:", 6, str); kputw(p->sub, str); }
-	if (bwa_rg_id[0]) { kputsn("\tRG:i:", 6, str); kputs(bwa_rg_id, str); }
+	if (bwa_rg_id[0]) { kputsn("\tRG:Z:", 6, str); kputs(bwa_rg_id, str); }
 	if (s->comment) { kputc('\t', str); kputs(s->comment, str); }
 	kputc('\n', str);
 	free(cigar);
diff --git a/main.c b/main.c
index f7ec3d7..473bcd3 100644
--- a/main.c
+++ b/main.c
@@ -4,7 +4,7 @@
 #include "utils.h"
 
 #ifndef PACKAGE_VERSION
-#define PACKAGE_VERSION "0.6.2-r292-beta"
+#define PACKAGE_VERSION "0.6.2-r293-beta"
 #endif
 
 static int usage()