diff --git a/bwamem.c b/bwamem.c
index 6868dba..ae9731a 100644
--- a/bwamem.c
+++ b/bwamem.c
@@ -378,7 +378,7 @@ KSORT_INIT(mem_ars2, mem_alnreg_t, alnreg_slt2)
 #define alnreg_slt(a, b) ((a).score > (b).score || ((a).score == (b).score && ((a).rb < (b).rb || ((a).rb == (b).rb && (a).qb < (b).qb))))
 KSORT_INIT(mem_ars, mem_alnreg_t, alnreg_slt)
 
-#define alnreg_hlt(a, b) ((a).score > (b).score || ((a).score == (b).score && (a).hash < (b).hash))
+#define alnreg_hlt(a, b)  ((a).score > (b).score || ((a).score == (b).score && ((a).is_alt < (b).is_alt || ((a).is_alt == (b).is_alt && (a).hash < (b).hash))))
 KSORT_INIT(mem_ars_hash, mem_alnreg_t, alnreg_hlt)
 
 #define alnreg_hlt2(a, b) ((a).is_alt < (b).is_alt || ((a).is_alt == (b).is_alt && ((a).score > (b).score || ((a).score == (b).score && (a).hash < (b).hash))))
diff --git a/main.c b/main.c
index 4a38fbd..8c34b1b 100644
--- a/main.c
+++ b/main.c
@@ -4,7 +4,7 @@
 #include "utils.h"
 
 #ifndef PACKAGE_VERSION
-#define PACKAGE_VERSION "0.7.10-r826-dirty"
+#define PACKAGE_VERSION "0.7.10-r827-dirty"
 #endif
 
 int bwa_fa2pac(int argc, char *argv[]);