diff --git a/boot/bootutil/src/swap_move.c b/boot/bootutil/src/swap_move.c
index 8c59843..d7c9ad4 100644
--- a/boot/bootutil/src/swap_move.c
+++ b/boot/bootutil/src/swap_move.c
@@ -315,11 +315,13 @@
     old_off = boot_img_sector_off(state, BOOT_PRIMARY_SLOT, idx - 1);
 
     if (bs->idx == BOOT_STATUS_IDX_0) {
-        rc = swap_erase_trailer_sectors(state, fap_pri);
-        assert(rc == 0);
+        if (bs->source != BOOT_STATUS_SOURCE_PRIMARY_SLOT) {
+            rc = swap_erase_trailer_sectors(state, fap_pri);
+            assert(rc == 0);
 
-        rc = swap_status_init(state, fap_pri, bs);
-        assert(rc == 0);
+            rc = swap_status_init(state, fap_pri, bs);
+            assert(rc == 0);
+        }
 
         rc = swap_erase_trailer_sectors(state, fap_sec);
         assert(rc == 0);