--- squashfs-tools/mksquashfs.c
+++ squashfs-tools/mksquashfs.c
@@ -38,6 +38,7 @@
 #include <string.h>
 #include <zlib.h>
 #include <stdlib.h>
+#include <stdint.h>
 #include <signal.h>
 #include <setjmp.h>
 #include <sys/ioctl.h>
@@ -3023,7 +3024,7 @@
 				case S_IFREG:
 					squashfs_type = SQUASHFS_FILE_TYPE;
 					write_file(inode, dir_ent, &duplicate_file);
-					INFO("file %s, uncompressed size %lld bytes %s\n", filename, buf->st_size, duplicate_file ? "DUPLICATE" : "");
+					INFO("file %s, uncompressed size %jd bytes %s\n", filename, (intmax_t)buf->st_size, duplicate_file ? "DUPLICATE" : "");
 					break;
 
 				case S_IFDIR:
@@ -3077,7 +3078,7 @@
 			switch(squashfs_type) {
 				case SQUASHFS_FILE_TYPE:
 					if(!sorted)
-						INFO("file %s, uncompressed size %lld bytes LINK\n", filename, buf->st_size);
+						INFO("file %s, uncompressed size %jd bytes LINK\n", filename, (intmax_t)buf->st_size);
 					break;
 				case SQUASHFS_SYMLINK_TYPE:
 					INFO("symbolic link %s inode 0x%llx LINK\n", dir_name, *inode);
--- squashfs-tools/sort.c
+++ squashfs-tools/sort.c
@@ -33,6 +33,7 @@
 #include <dirent.h>
 #include <string.h>
 #include <stdlib.h>
+#include <stdint.h>
 
 #include <squashfs_fs.h>
 #include "global.h"
@@ -235,14 +236,14 @@
 			TRACE("%d: %s\n", i - 32768, entry->dir->pathname);
 			if(entry->dir->inode->inode == SQUASHFS_INVALID_BLK) {
 				write_file(&inode, entry->dir, &duplicate_file);
-				INFO("file %s, uncompressed size %lld bytes %s\n",
+				INFO("file %s, uncompressed size %jd bytes %s\n",
 					entry->dir->pathname,
-					entry->dir->inode->buf.st_size,
+					(intmax_t)entry->dir->inode->buf.st_size,
 					duplicate_file ? "DUPLICATE" : "");
 				entry->dir->inode->inode = inode;
 				entry->dir->inode->type = SQUASHFS_FILE_TYPE;
 			} else
-				INFO("file %s, uncompressed size %lld bytes LINK\n",
-					entry->dir->pathname, entry->dir->inode->buf.st_size);
+				INFO("file %s, uncompressed size %jd bytes LINK\n",
+					entry->dir->pathname, (intmax_t)entry->dir->inode->buf.st_size);
 		}
 }