diff --git a/dev-util/netsurf_buildsystem/netsurf_buildsystem-1.7.recipe b/dev-util/netsurf_buildsystem/netsurf_buildsystem-1.7.recipe
index 37c770936..c2183da9b 100644
--- a/dev-util/netsurf_buildsystem/netsurf_buildsystem-1.7.recipe
+++ b/dev-util/netsurf_buildsystem/netsurf_buildsystem-1.7.recipe
@@ -6,6 +6,7 @@ LICENSE="MIT"
 REVISION="1"
 SOURCE_URI="https://download.netsurf-browser.org/libs/releases/buildsystem-$portVersion.tar.gz"
 CHECKSUM_SHA256="1cd6453301cd88c4dcc36ae67c67d2023b8a56ec2fd0704851b58ccdbc5243e0"
+SOURCE_FILENAME="netsurf-buildsystem-$portVersion.tar.gz"
 SOURCE_DIR="buildsystem-$portVersion"
 
 ARCHITECTURES="any"