diff --git a/bwt_lite.c b/bwt_lite.c
index 0ecb84d..f7946f5 100644
--- a/bwt_lite.c
+++ b/bwt_lite.c
@@ -20,7 +20,7 @@ bwtl_t *bwtl_seq2bwtl(int len, const uint8_t *seq)
 	{ // calculate b->bwt
 		uint8_t *s;
 		b->sa = (uint32_t*)calloc(len + 1, 4);
-		is_sa(seq, b->sa, len);
+		is_sa(seq, (int*)b->sa, len);
 		s = (uint8_t*)calloc(len + 1, 1);
 		for (i = 0; i <= len; ++i) {
 			if (b->sa[i] == 0) b->primary = i;
diff --git a/main.c b/main.c
index 324dd5d..d7645ee 100644
--- a/main.c
+++ b/main.c
@@ -4,7 +4,7 @@
 #include "utils.h"
 
 #ifndef PACKAGE_VERSION
-#define PACKAGE_VERSION "0.7.8-r766-dirty"
+#define PACKAGE_VERSION "0.7.8-r770-dirty"
 #endif
 
 int bwa_fa2pac(int argc, char *argv[]);