diff --git a/file-5.04-zip64.patch b/file-5.04-zip64.patch
new file mode 100644
index 0000000..89b5a18
--- /dev/null
+++ b/file-5.04-zip64.patch
@@ -0,0 +1,11 @@
+--- file-5.04/magic/Magdir/archive	2010-09-27 17:52:19.242245630 +0530
++++ file-5.04/magic/Magdir/archive	2010-09-27 17:52:12.015252938 +0530
+@@ -581,6 +581,8 @@
+ !:mime	application/zip
+ >>4	byte		0x14		Zip archive data, at least v2.0 to extract
+ !:mime	application/zip
++>>4     byte            0x2d            Zip64 archive data, at least v3.0 to extract
++!:mime  application/zip
+ 
+ # OpenOffice.org / KOffice / StarOffice documents
+ # Listed here because they ARE zip files
diff --git a/file.spec b/file.spec
index 6874a24..1908822 100644
--- a/file.spec
+++ b/file.spec
@@ -5,7 +5,7 @@
 Summary: A utility for determining file types
 Name: file
 Version: 5.04
-Release: 15%{?dist}
+Release: 16%{?dist}
 License: BSD
 Group: Applications/File
 Source0: ftp://ftp.astron.com/pub/file/file-%{version}.tar.gz
@@ -25,6 +25,7 @@ Patch11: file-5.04-zmachine-magic-update.patch
 Patch12: file-5.04-core-prpsinfo.patch
 Patch13: file-5.04-python-2.7.patch
 Patch14: file-5.04-webm.patch
+Patch15: file-5.04-zip64.patch
 
 Requires: file-libs = %{version}-%{release}
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -105,6 +106,8 @@ file(1) command.
 %patch13 -p1
 #fixes #626591
 %patch14 -p1
+#fixes #637785
+%patch15 -p1
 
 iconv -f iso-8859-1 -t utf-8 < doc/libmagic.man > doc/libmagic.man_
 touch -r doc/libmagic.man doc/libmagic.man_
@@ -182,7 +185,10 @@ rm -rf $RPM_BUILD_ROOT
 %endif
 
 %changelog
-* Tue Aug 24 2010 Jan Kaluza <jkaulza@redhat.com> - 5.04-15
+* Wed Aug 29 2010 Jan Kaluza <jkaluza@redhat.com> - 5.04-16
+- fix #637785 - support for zip64 format
+
+* Tue Aug 24 2010 Jan Kaluza <jkaluza@redhat.com> - 5.04-15
 - fix #626591 - support for WebM format
 
 * Thu Aug 12 2010 Jan Kaluza <jkaluza@redhat.com> - 5.04-14