diff --git a/Dockerfile b/Dockerfile
index db8e4f89..4a6bf569 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM centos:7
 
 RUN yum -y -q install \
         libXpm net-tools bzip2 wget vim gcc gcc-c++ samba dos2unix glibc-devel glibc.i686 glibc-devel.i686 \
-        mpfr.i686 mpfr-devel.i686 zlib.i686 rsync autogen autoconf automake libtool gettext* bison binutils \
+        mpfr.i686 mpfr-devel.i686 rsync autogen autoconf automake libtool gettext* bison binutils \
         flex device-mapper-devel SDL libpciaccess libusb freetype freetype-devel gnu-free-* qemu-* virt-* \
         libvirt* vte* NetworkManager-bluetooth brlapi fuse-devel dejavu* gnu-efi* pesign shim \
         iscsi-initiator-utils grub2-tools zip nasm acpica-tools glibc-static zlib-static xorriso