diff --git a/util.hpp b/util.hpp
index 8a386e1..e5197dd 100644
--- a/util.hpp
+++ b/util.hpp
@@ -1,18 +1,16 @@
 #pragma once
 
-#include <string>
-
 namespace ipmi_flash
 {
 
-extern const std::string biosBlobId;
-extern const std::string updateBlobId;
-extern const std::string verifyBlobId;
-extern const std::string hashBlobId;
-extern const std::string activeImageBlobId;
-extern const std::string activeHashBlobId;
-extern const std::string staticLayoutBlobId;
-extern const std::string ubiTarballBlobId;
-extern const std::string cleanupBlobId;
+inline constexpr char biosBlobId[] = "/flash/bios";
+inline constexpr char updateBlobId[] = "/flash/update";
+inline constexpr char verifyBlobId[] = "/flash/verify";
+inline constexpr char hashBlobId[] = "/flash/hash";
+inline constexpr char activeImageBlobId[] = "/flash/active/image";
+inline constexpr char activeHashBlobId[] = "/flash/active/hash";
+inline constexpr char staticLayoutBlobId[] = "/flash/image";
+inline constexpr char ubiTarballBlobId[] = "/flash/tarball";
+inline constexpr char cleanupBlobId[] = "/flash/cleanup";
 
 } // namespace ipmi_flash