1 files changed, 3 insertions, 0 deletions

diff --git a/libbb/unarchive.c b/libbb/unarchive.c
index 5c5bb49f3..80dddb226 100644
--- a/libbb/unarchive.c
+++ b/libbb/unarchive.c
@@ -568,6 +568,9 @@ char *deb_extract(const char *package_filename, FILE *out_stream,
         /* open the debian package to be worked on */
         deb_stream = wfopen(package_filename, "r");
 
+        /* set the buffer size */
+        setvbuf(deb_stream, NULL, _IOFBF, 0x8000);
+
         /* check ar magic */
         fread(ar_magic, 1, 8, deb_stream);
         if (strncmp(ar_magic,"!<arch>",7) != 0) {