diff --git a/boot/bootutil/src/bootutil_misc.c b/boot/bootutil/src/bootutil_misc.c
index 630cfa7..279190f 100644
--- a/boot/bootutil/src/bootutil_misc.c
+++ b/boot/bootutil/src/bootutil_misc.c
@@ -407,7 +407,7 @@
 
     off = boot_magic_off(fap);
 
-    BOOT_LOG_DBG("writing magic; fa_id=%d off=0x%x (0x%x)",
+    BOOT_LOG_DBG("writing magic; fa_id=%d off=0x%lx (0x%lx)",
                  fap->fa_id, off, fap->fa_off + off);
     rc = flash_area_write(fap, off, boot_img_magic, BOOT_MAGIC_SZ);
     if (rc != 0) {
@@ -464,7 +464,7 @@
     uint32_t off;
 
     off = boot_copy_done_off(fap);
-    BOOT_LOG_DBG("writing copy_done; fa_id=%d off=0x%x (0x%x)",
+    BOOT_LOG_DBG("writing copy_done; fa_id=%d off=0x%lx (0x%lx)",
                  fap->fa_id, off, fap->fa_off + off);
     return boot_write_trailer_flag(fap, off, BOOT_FLAG_SET);
 }
@@ -475,7 +475,7 @@
     uint32_t off;
 
     off = boot_image_ok_off(fap);
-    BOOT_LOG_DBG("writing image_ok; fa_id=%d off=0x%x (0x%x)",
+    BOOT_LOG_DBG("writing image_ok; fa_id=%d off=0x%lx (0x%lx)",
                  fap->fa_id, off, fap->fa_off + off);
     return boot_write_trailer_flag(fap, off, BOOT_FLAG_SET);
 }
@@ -494,7 +494,7 @@
 
     BOOT_SET_SWAP_INFO(swap_info, image_num, swap_type);
     off = boot_swap_info_off(fap);
-    BOOT_LOG_DBG("writing swap_info; fa_id=%d off=0x%x (0x%x), swap_type=0x%x"
+    BOOT_LOG_DBG("writing swap_info; fa_id=%d off=0x%lx (0x%lx), swap_type=0x%x"
                  " image_num=0x%x",
                  fap->fa_id, off, fap->fa_off + off, swap_type, image_num);
     return boot_write_trailer(fap, off, (const uint8_t *) &swap_info, 1);
@@ -506,7 +506,7 @@
     uint32_t off;
 
     off = boot_swap_size_off(fap);
-    BOOT_LOG_DBG("writing swap_size; fa_id=%d off=0x%x (0x%x)",
+    BOOT_LOG_DBG("writing swap_size; fa_id=%d off=0x%lx (0x%lx)",
                  fap->fa_id, off, fap->fa_off + off);
     return boot_write_trailer(fap, off, (const uint8_t *) &swap_size, 4);
 }