diff --git a/pkgs/by-name/dm/dmarc-report-converter/package.nix b/pkgs/by-name/dm/dmarc-report-converter/package.nix
index 8f5b3eb44270..507fbe4a4300 100644
--- a/pkgs/by-name/dm/dmarc-report-converter/package.nix
+++ b/pkgs/by-name/dm/dmarc-report-converter/package.nix
@@ -19,6 +19,8 @@ buildGoModule rec {
 
   vendorHash = null;
 
+  checkFlags = [ "-mod=vendor ./cmd/... ./pkg/..." ];
+
   ldflags = [
     "-s"
     "-w"