1 files changed, 1 insertions, 0 deletions
diff --git a/tools/gridss-assemble.nix b/tools/gridss-assemble.nix
index cdda748..b6f4ffd 100644
--- a/tools/gridss-assemble.nix
+++ b/tools/gridss-assemble.nix
@@ -51,6 +51,7 @@ stdenv.mkDerivation rec {
       ${concatMapStringsSep " " (i: "INPUT='${i}'") inputs} \
       WORKER_THREADS=$NIX_BUILD_CORES \
       OUTPUT=$out \
+      ${optionalString (config != null) ("CONFIGURATION_FILE=" + gridssConfig config)} \
       WORKING_DIR=$TMPDIR/ \
       TMP_DIR=$TMPDIR/
   '';