diff --git a/src/ChangeLog b/src/ChangeLog
index 039d3709..70af66bd 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,6 @@
+[2.0.13]
+- Fixed a bug that caused invalid bit scores in frameshift alignment mode.
+
 [2.0.12]
 - Fixed an error when using HSP filter settings together with a BLAST database.
 - Optimized the performance of alignment traceback.
diff --git a/src/basic/basic.cpp b/src/basic/basic.cpp
index c00129c6..7ca52565 100644
--- a/src/basic/basic.cpp
+++ b/src/basic/basic.cpp
@@ -29,7 +29,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "../util/util.h"
 #include "../stats/standard_matrix.h"
 
-const char* Const::version_string = "2.0.12";
+const char* Const::version_string = "2.0.13";
 const char* Const::program_name = "diamond";
 
 Align_mode::Align_mode(unsigned mode) :
diff --git a/src/basic/const.h b/src/basic/const.h
index 6dc2eb94..e037e2c9 100644
--- a/src/basic/const.h
+++ b/src/basic/const.h
@@ -25,7 +25,7 @@ struct Const
 {
 
 	enum {
-		build_version = 150,
+		build_version = 151,
 #ifdef SINGLE_THREADED
 		seedp_bits = 0,
 #else
diff --git a/src/dp/swipe/banded_3frame_swipe.cpp b/src/dp/swipe/banded_3frame_swipe.cpp
index 1ec9d73b..bbd9b63b 100644
--- a/src/dp/swipe/banded_3frame_swipe.cpp
+++ b/src/dp/swipe/banded_3frame_swipe.cpp
@@ -337,6 +337,7 @@ Hsp traceback(Sequence *query, Strand strand, int dna_len, const Banded3FrameSwi
 	Hsp out(true);
 	out.swipe_target = target.target_idx;
 	out.score = ScoreTraits<_sv>::int_score(max_score) * config.cbs_matrix_scale;
+	out.bit_score = score_matrix.bitscore(out.score);
 	out.evalue = evalue;
 	out.transcript.reserve(size_t(out.score * config.transcript_len_estimate));
 
@@ -378,6 +379,7 @@ Hsp traceback(Sequence *query, Strand strand, int dna_len, const Banded3FrameSwi
 	const int j0 = i1 - (target.d_end - 1);
 	out.swipe_target = target.target_idx;
 	out.score = ScoreTraits<_sv>::int_score(max_score) * config.cbs_matrix_scale;
+	out.bit_score = score_matrix.bitscore(out.score);
 	out.evalue = evalue;
 	out.query_range.end_ = std::min(i0 + max_col + (int)dp.band() / 3 / 2, (int)query[0].length());
 	out.query_range.begin_ = std::max(out.query_range.end_ - (j0 + max_col), 0);