diff --git a/package/isl/isl.hash b/package/isl/isl.hash
index e2c14ad149..43e5a463af 100644
--- a/package/isl/isl.hash
+++ b/package/isl/isl.hash
@@ -1,2 +1,2 @@
 # Locally computed
-sha256	8882c9e36549fc757efa267706a9af733bb8d7fe3905cbfde43e17a89eea4675	isl-0.14.1.tar.xz
+sha256	0f35051cc030b87c673ac1f187de40e386a1482a0cfdf2c552dd6031b307ddc4	isl-0.18.tar.xz
diff --git a/package/isl/isl.mk b/package/isl/isl.mk
index 74de125b60..b5f01c4c8d 100644
--- a/package/isl/isl.mk
+++ b/package/isl/isl.mk
@@ -4,18 +4,11 @@
 #
 ################################################################################
 
-# The latest 0.15 version is not yet compatible with cloog 0.18.3, so
-# bumping isl is not possible until a new version of cloog is
-# published.
-ISL_VERSION = 0.14.1
+ISL_VERSION = 0.18
 ISL_SOURCE = isl-$(ISL_VERSION).tar.xz
 ISL_SITE = http://isl.gforge.inria.fr
 ISL_LICENSE = MIT
 ISL_LICENSE_FILES = LICENSE
 HOST_ISL_DEPENDENCIES = host-gmp
 
-# Our libtool patch doesn't apply, and since this package is only
-# built for the host, we don't really care about it.
-ISL_LIBTOOL_PATCH = NO
-
 $(eval $(host-autotools-package))