diff --git a/libntfs/dir.c b/libntfs/dir.c
index 0343db43..a08fa48f 100644
--- a/libntfs/dir.c
+++ b/libntfs/dir.c
@@ -287,7 +287,8 @@ descend_into_child_node:
 	if (br != 1) {
 		if (br != -1)
 			errno = EIO;
-		ntfs_log_perror("Failed to read vcn 0x%llx", vcn);
+		ntfs_log_perror("Failed to read vcn 0x%llx",
+			       	(unsigned long long)vcn);
 		goto close_err_out;
 	}
 
diff --git a/libntfs/index.c b/libntfs/index.c
index a977200b..472254db 100644
--- a/libntfs/index.c
+++ b/libntfs/index.c
@@ -88,7 +88,8 @@ static int ntfs_ib_write(ntfs_index_context *icx, VCN vcn, void *buf)
 				   1, icx->block_size, buf);
 	if (ret != 1) {
 		ntfs_log_perror("Failed to write index block %lld of inode "
-				"%llu", vcn, icx->ni->mft_no);
+				"%llu", (long long)vcn,
+				(unsigned long long)icx->ni->mft_no);
 		return STATUS_ERROR;
 	}
 	return STATUS_OK;
@@ -402,7 +403,8 @@ static int ntfs_ia_check(ntfs_index_context *icx, INDEX_BLOCK *ib, VCN vcn)
 	if (!ntfs_is_indx_record(ib->magic)) {
 
 		ntfs_log_error("Corrupt index block signature: vcn %lld inode "
-			       "%llu\n", (long long)vcn, icx->ni->mft_no);
+			       "%llu\n", (long long)vcn,
+			       (unsigned long long)icx->ni->mft_no);
 		return -1;
 	}
 
@@ -410,8 +412,9 @@ static int ntfs_ia_check(ntfs_index_context *icx, INDEX_BLOCK *ib, VCN vcn)
 
 		ntfs_log_error("Corrupt index block: VCN (%lld) is different "
 			       "from expected VCN (%lld) in inode %llu\n",
-			       (long long) sle64_to_cpu(ib->index_block_vcn),
-			       (long long)vcn, icx->ni->mft_no);
+			       (long long)sle64_to_cpu(ib->index_block_vcn),
+			       (long long)vcn,
+			       (unsigned long long)icx->ni->mft_no);
 		return -1;
 	}
 
@@ -495,7 +498,8 @@ static int ntfs_ie_lookup(const void *key, const int key_len,
 		    (u8 *)ie + le16_to_cpu(ie->length) > index_end) {
 			errno = ERANGE;
 			ntfs_log_error("Index entry out of bounds in inode "
-				       "%llu.\n", icx->ni->mft_no);
+				       "%llu.\n",
+				       (unsigned long long)icx->ni->mft_no);
 			return STATUS_ERROR;
 		}
 		/*
@@ -566,7 +570,7 @@ static ntfs_attr *ntfs_ia_open(ntfs_index_context *icx, ntfs_inode *ni)
 	na = ntfs_attr_open(ni, AT_INDEX_ALLOCATION, icx->name, icx->name_len);
 	if (!na) {
 		ntfs_log_perror("Failed to open index allocation of inode "
-				"%llu", ni->mft_no);
+				"%llu", (unsigned long long)ni->mft_no);
 		return NULL;
 	}
 	return na;
@@ -587,7 +591,7 @@ static int ntfs_ib_read(ntfs_index_context *icx, VCN vcn, INDEX_BLOCK *dst)
 			ntfs_log_perror("Failed to read index block");
 		else
 			ntfs_log_error("Failed to read full index block at "
-				       "%lld\n", pos);
+				       "%lld\n", (long long)pos);
 		return -1;
 	}
 
@@ -759,7 +763,8 @@ descend_into_child_node:
 
 	if ((ib->index.flags & NODE_MASK) == LEAF_NODE) {
 		ntfs_log_error("Index entry with child node found in a leaf "
-			       "node in inode 0x%llx.\n", ni->mft_no);
+			       "node in inode 0x%llx.\n",
+			       (unsigned long long)ni->mft_no);
 		goto err_out;
 	}