diff --git a/dev-libs/libcss/libcss-0.6.0.recipe b/dev-libs/libcss/libcss-0.6.0.recipe
index 2e510e1a8..493f7b8db 100644
--- a/dev-libs/libcss/libcss-0.6.0.recipe
+++ b/dev-libs/libcss/libcss-0.6.0.recipe
@@ -6,6 +6,7 @@ COPYRIGHT="2007-2016 J-M Bell"
 LICENSE="MIT"
 REVISION="2"
 SOURCE_URI="http://download.netsurf-browser.org/libs/releases/libcss-$portVersion-src.tar.gz"
+CHECKSUM_SHA256="4eb5228e5c480e31ba8ca098cedfec3a7ef90302ede77989caedf11670b8e462"
 
 ARCHITECTURES="x86_gcc2 x86 x86_64"
 SECONDARY_ARCHITECTURES="x86_gcc2 x86"