diff --git a/lib/ftl/ftl_internal.h b/lib/ftl/ftl_internal.h
index cc5ab8835..1ee70fad4 100644
--- a/lib/ftl/ftl_internal.h
+++ b/lib/ftl/ftl_internal.h
@@ -141,7 +141,7 @@ ftl_p2l_validate_ckpt(struct ftl_band *band)
 }
 #endif
 
-int ftl_mngt_p2l_ckpt_get_seq_id(struct spdk_ftl_dev *dev, int md_region);
+uint64_t ftl_mngt_p2l_ckpt_get_seq_id(struct spdk_ftl_dev *dev, int md_region);
 
 int ftl_mngt_p2l_ckpt_restore(struct ftl_band *band, uint32_t md_region, uint64_t seq_id);
 
diff --git a/lib/ftl/ftl_p2l.c b/lib/ftl/ftl_p2l.c
index 6f862ce6c..ca507a81f 100644
--- a/lib/ftl/ftl_p2l.c
+++ b/lib/ftl/ftl_p2l.c
@@ -352,7 +352,7 @@ ftl_mngt_persist_bands_p2l(struct ftl_mngt_process *mngt)
 	ftl_mngt_persist_band_p2l(mngt, ctx);
 }
 
-int
+uint64_t
 ftl_mngt_p2l_ckpt_get_seq_id(struct spdk_ftl_dev *dev, int md_region)
 {
 	struct ftl_layout *layout = &dev->layout;
diff --git a/lib/ftl/mngt/ftl_mngt_band.c b/lib/ftl/mngt/ftl_mngt_band.c
index 8fbe0183f..3398343fc 100644
--- a/lib/ftl/mngt/ftl_mngt_band.c
+++ b/lib/ftl/mngt/ftl_mngt_band.c
@@ -233,9 +233,9 @@ void
 ftl_recover_max_seq(struct spdk_ftl_dev *dev)
 {
 	struct ftl_band *band;
-	size_t band_close_seq_id = 0, band_open_seq_id = 0;
-	size_t chunk_close_seq_id = 0, chunk_open_seq_id = 0;
-	size_t max = 0;
+	uint64_t band_close_seq_id = 0, band_open_seq_id = 0;
+	uint64_t chunk_close_seq_id = 0, chunk_open_seq_id = 0;
+	uint64_t max = 0;
 
 	TAILQ_FOREACH(band, &dev->shut_bands, queue_entry) {
 		band_open_seq_id = spdk_max(band_open_seq_id, band->md->seq);