diff --git a/pkgs/applications/networking/cluster/fluxcd/update.sh b/pkgs/applications/networking/cluster/fluxcd/update.sh
index e9cc46b120cf..1ded63d4d86c 100755
--- a/pkgs/applications/networking/cluster/fluxcd/update.sh
+++ b/pkgs/applications/networking/cluster/fluxcd/update.sh
@@ -24,7 +24,7 @@ setKV vendorSha256 "0000000000000000000000000000000000000000000000000000" # The
 
 cd ../../../../../
 set +e
-VENDOR_SHA256=$(nix-build --no-out-link -A fluxcd 2>&1 | grep "got:" | cut -d':' -f3)
+VENDOR_SHA256=$(nix-build --no-out-link -A fluxcd 2>&1 >/dev/null | grep "got:" | cut -d':' -f2 | sed 's| ||g')
 set -e
 
 cd - > /dev/null