diff --git a/align.c b/align.c
index 56345a5..a190abe 100644
--- a/align.c
+++ b/align.c
@@ -1031,8 +1031,12 @@ mm_reg1_t *mm_align_skeleton(void *km, const mm_mapopt_t *opt, const mm_idx_t *m
 			}
 			r = &regs[i];
 			r->p->trans_strand = trans_strand;
-			if (r->is_spliced && (trans_strand == 1 || trans_strand == 2))
-				r->p->dp_max += (opt->a + opt->b) + ((opt->a + opt->b) >> 1);
+			if (r->is_spliced) {
+				if (trans_strand == 1 || trans_strand == 2) // this is an *approximate* way to tell if there are splice signals.
+					r->p->dp_max += (opt->a + opt->b) + ((opt->a + opt->b) >> 1);
+				else if (trans_strand == 3)
+					r->p->dp_max -= opt->a + opt->b;
+			}
 		} else { // one round of alignment
 			mm_align1(km, opt, mi, qlen, qseq0, &regs[i], &r2, n_a, a, &ez, opt->flag);
 			if (opt->flag&MM_F_SPLICE)
diff --git a/minimap.h b/minimap.h
index e39b4c1..d7140ce 100644
--- a/minimap.h
+++ b/minimap.h
@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <sys/types.h>
 
-#define MM_VERSION "2.28-r1266-dirty"
+#define MM_VERSION "2.28-r1267-dirty"
 
 #define MM_F_NO_DIAG       (0x001LL) // no exact diagonal hit
 #define MM_F_NO_DUAL       (0x002LL) // skip pairs where query name is lexicographically larger than target name
@@ -119,7 +119,7 @@ typedef struct {
 	int32_t mlen, blen;     // seeded exact match length; seeded alignment block length
 	int32_t n_sub;          // number of suboptimal mappings
 	int32_t score0;         // initial chaining score (before chain merging/spliting)
-	uint32_t mapq:8, split:2, rev:1, inv:1, sam_pri:1, proper_frag:1, pe_thru:1, seg_split:1, seg_id:8, split_inv:1, is_alt:1, strand_retained:1, is_spliced:1, is_spliced2:1, dummy:3;
+	uint32_t mapq:8, split:2, rev:1, inv:1, sam_pri:1, proper_frag:1, pe_thru:1, seg_split:1, seg_id:8, split_inv:1, is_alt:1, strand_retained:1, is_spliced:1, dummy:4;
 	uint32_t hash;
 	float div;
 	mm_extra_t *p;