diff --git a/include/ntfs-3g/endians.h b/include/ntfs-3g/endians.h
index 291eccec..07ae2221 100644
--- a/include/ntfs-3g/endians.h
+++ b/include/ntfs-3g/endians.h
@@ -304,4 +304,6 @@
 
 #define sle16_eq(a, b) ((a) == (b))
 
+#define sle64_eq(a, b) ((a) == (b))
+
 #endif /* defined _NTFS_ENDIANS_H */
diff --git a/libntfs-3g/attrlist.c b/libntfs-3g/attrlist.c
index 9c62f316..450f0980 100644
--- a/libntfs-3g/attrlist.c
+++ b/libntfs-3g/attrlist.c
@@ -155,7 +155,7 @@ int ntfs_attrlist_entry_add(ntfs_inode *ni, ATTR_RECORD *attr)
 			le16_to_cpu(attr->value_offset)), (attr->non_resident) ?
 			0 : le32_to_cpu(attr->value_length), ctx)) {
 		/* Found some extent, check it to be before new extent. */
-		if (ctx->al_entry->lowest_vcn == attr->lowest_vcn) {
+		if (sle64_eq(ctx->al_entry->lowest_vcn, attr->lowest_vcn)) {
 			err = EEXIST;
 			ntfs_log_trace("Such attribute already present in the "
 					"attribute list.\n");
diff --git a/ntfsprogs/ntfsfix.c b/ntfsprogs/ntfsfix.c
index fc55cc61..b1005c23 100644
--- a/ntfsprogs/ntfsfix.c
+++ b/ntfsprogs/ntfsfix.c
@@ -871,7 +871,7 @@ static BOOL attrlist_selfloc_condition(struct MFT_SELF_LOCATED *selfloc)
 			    && al->length
 			    && le32_eq(al->type, AT_DATA)
 			    && !al->name_length
-			    && ((leVCN)al->lowest_vcn == levcn)
+			    && sle64_eq(al->lowest_vcn, levcn)
 			    && (MREF_LE(al->mft_reference) >= SELFLOC_LIMIT)) {
 				selfloc->mft_ref1
 					= le64_to_cpu(al->mft_reference);