diff --git a/srcpkgs/cross-x86_64-w64-mingw32/template b/srcpkgs/cross-x86_64-w64-mingw32/template
index c32a573bf20..816e6f1f68e 100644
--- a/srcpkgs/cross-x86_64-w64-mingw32/template
+++ b/srcpkgs/cross-x86_64-w64-mingw32/template
@@ -26,7 +26,7 @@ distfiles="
  ${GNU_SITE}/mpc/mpc-${_mpc_version}.tar.gz
  ${GNU_SITE}/gmp/gmp-${_gmp_version}.tar.xz
  ${GNU_SITE}/mpfr/mpfr-${_mpfr_version}.tar.xz
- http://isl.gforge.inria.fr/isl-${_isl_version}.tar.bz2
+ ${SOURCEFORGE_SITE}/libisl/isl-${_isl_version}.tar.bz2
  ${SOURCEFORGE_SITE}/project/mingw-w64/mingw-w64/mingw-w64-release/mingw-w64-v${_mingw_version}.tar.bz2"
 checksum="3ced91db9bf01182b7e420eab68039f2083aed0a214c0424e257eae3ddee8607
  4c4a6fb8a8396059241c2e674b85b351c26a5d678274007f076957afa1cc9ddf