diff --git a/install-all.sh b/install-all.sh
index e435d0a2..0ea0817d 100755
--- a/install-all.sh
+++ b/install-all.sh
@@ -65,9 +65,9 @@ cygwin_prepare()
 
     if ! command -v apt-cyg &>/dev/null; then cyg_install_apt_cyg; fi
     if [ -n "$CYG_MIRROR" ]; then
-        apt-cyg -m $CYG_MIRROR install git make gcc-core m4 automake autoconf pkg-config openssl-devel libexpat-devel zlib-devel libncursesw-devel libglib2.0-devel libcurl-devel libidn-devel libssh2-devel libkrb5-devel openldap-devel libgcrypt-devel libreadline-devel libgpgme-devel libtool libpcre-devel
+        apt-cyg -m $CYG_MIRROR install git make gcc-core m4 automake autoconf pkg-config openssl-devel libexpat-devel zlib-devel libncursesw-devel libglib2.0-devel libcurl-devel libidn-devel libssh2-devel libkrb5-devel openldap-devel libgcrypt-devel libreadline-devel libgpgme-devel libtool libpcre-devel libisl10 libcloog-isl4
     else
-        apt-cyg install git make gcc-core m4 automake autoconf pkg-config openssl-devel libexpat-devel zlib-devel libncursesw-devel libglib2.0-devel libcurl-devel libidn-devel libssh2-devel libkrb5-devel openldap-devel libgcrypt-devel libreadline-devel libgpgme-devel libtool libpcre-devel
+        apt-cyg install git make gcc-core m4 automake autoconf pkg-config openssl-devel libexpat-devel zlib-devel libncursesw-devel libglib2.0-devel libcurl-devel libidn-devel libssh2-devel libkrb5-devel openldap-devel libgcrypt-devel libreadline-devel libgpgme-devel libtool libpcre-devel libisl10 libcloog-isl4
 
     fi
 }