diff --git a/map.c b/map.c
index e2cb1c5..85b812c 100644
--- a/map.c
+++ b/map.c
@@ -463,6 +463,10 @@ static void worker_for(void *_data, long i, int tid) // kt_for() callback
 				r->qs = qlens[j] - r->qe;
 				r->qe = qlens[j] - t;
 				r->rev = !r->rev;
+				if (r->p) {
+					if (r->p->trans_strand == 1) r->p->trans_strand = 2;
+					else if (r->p->trans_strand == 2) r->p->trans_strand = 1;
+				}
 			}
 		}
 	if (mm_dbg_flag & MM_DBG_PRINT_QNAME)
diff --git a/minimap.h b/minimap.h
index b53a0ed..1e9a720 100644
--- a/minimap.h
+++ b/minimap.h
@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <sys/types.h>
 
-#define MM_VERSION "2.28-r1269-dirty"
+#define MM_VERSION "2.28-r1270-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