diff --git a/pkgs/oizys/src/oizys/nix.nim b/pkgs/oizys/src/oizys/nix.nim
index 5723581..dfb7a20 100644
--- a/pkgs/oizys/src/oizys/nix.nim
+++ b/pkgs/oizys/src/oizys/nix.nim
@@ -312,7 +312,7 @@ proc nixBuildHostDry*(minimal: bool, rest: seq[string]) =
   cmd.addArg "--dry-run"
   cmd.addArgs rest
   let (_, err) =
-    runCmdCaptWithSpinner(cmd, "evaluating derivation for: " & getHosts().join(" "), {CaptStderr})
+    runCmdCaptWithSpinner(cmd, "evaluating derivation for: " & getHosts().join(" ").bb("bold"), {CaptStderr})
   let output = parseDryRunOutput err
   display output