diff --git a/examples/kernel-multiboot2-grub/expected.txt b/examples/kernel-multiboot2-grub/expected.txt
index 91e53e6..5c1ba79 100644
Binary files a/examples/kernel-multiboot2-grub/expected.txt and b/examples/kernel-multiboot2-grub/expected.txt differ
diff --git a/examples/kernel-multiboot2-grub/multiboot2.c b/examples/kernel-multiboot2-grub/multiboot2.c
index 51377e6..c7023c1 100644
--- a/examples/kernel-multiboot2-grub/multiboot2.c
+++ b/examples/kernel-multiboot2-grub/multiboot2.c
@@ -10,10 +10,10 @@ __attribute__((packed))
 multiboot2_header = {
     .multiboot2_header = {
         .magic = KERNAUX_MULTIBOOT2_HEADER_MAGIC,
-        .arch = KERNAUX_MULTIBOOT2_ARCH_NONE,
+        .arch = KERNAUX_MULTIBOOT2_HEADER_ARCH_I386,
         .total_size = sizeof(multiboot2_header),
         .checksum = KERNAUX_MULTIBOOT2_HEADER_CHECKSUM(
-            KERNAUX_MULTIBOOT2_ARCH_NONE,
+            KERNAUX_MULTIBOOT2_HEADER_ARCH_I386,
             sizeof(multiboot2_header)
         ),
     },
diff --git a/examples/kernel-multiboot2-limine/expected.txt b/examples/kernel-multiboot2-limine/expected.txt
index 263ddae..312e026 100644
Binary files a/examples/kernel-multiboot2-limine/expected.txt and b/examples/kernel-multiboot2-limine/expected.txt differ
diff --git a/examples/kernel-multiboot2-limine/multiboot2.c b/examples/kernel-multiboot2-limine/multiboot2.c
index 51377e6..c7023c1 100644
--- a/examples/kernel-multiboot2-limine/multiboot2.c
+++ b/examples/kernel-multiboot2-limine/multiboot2.c
@@ -10,10 +10,10 @@ __attribute__((packed))
 multiboot2_header = {
     .multiboot2_header = {
         .magic = KERNAUX_MULTIBOOT2_HEADER_MAGIC,
-        .arch = KERNAUX_MULTIBOOT2_ARCH_NONE,
+        .arch = KERNAUX_MULTIBOOT2_HEADER_ARCH_I386,
         .total_size = sizeof(multiboot2_header),
         .checksum = KERNAUX_MULTIBOOT2_HEADER_CHECKSUM(
-            KERNAUX_MULTIBOOT2_ARCH_NONE,
+            KERNAUX_MULTIBOOT2_HEADER_ARCH_I386,
             sizeof(multiboot2_header)
         ),
     },
diff --git a/include/kernaux/multiboot2.h b/include/kernaux/multiboot2.h
index 8de5ddd..8a1f2d1 100644
--- a/include/kernaux/multiboot2.h
+++ b/include/kernaux/multiboot2.h
@@ -43,8 +43,7 @@ extern "C" {
  ***********************/
 
 enum KernAux_Multiboot2_Header_Arch {
-    KERNAUX_MULTIBOOT2_HEADER_ARCH_NONE   = 0,
-    KERNAUX_MULTIBOOT2_HEADER_ARCH_I386   = 1,
+    KERNAUX_MULTIBOOT2_HEADER_ARCH_I386   = 0,
     KERNAUX_MULTIBOOT2_HEADER_ARCH_MIPS32 = 4,
 };
 
@@ -465,6 +464,10 @@ __attribute__((packed));
  * String functions *
  ********************/
 
+const char *KernAux_Multiboot2_Header_Arch_to_str(
+    enum KernAux_Multiboot2_Header_Arch arch
+);
+
 const char *KernAux_Multiboot2_HTag_to_str(
     enum KernAux_Multiboot2_HTag tag_type
 );
@@ -473,6 +476,10 @@ const char *KernAux_Multiboot2_ITag_to_str(
     enum KernAux_Multiboot2_ITag tag_type
 );
 
+const char *KernAux_Multiboot2_HTag_RelocatableHeader_Preference_to_str(
+    enum KernAux_Multiboot2_HTag_RelocatableHeader_Preference pref
+);
+
 /***************************
  * Header helper functions *
  ***************************/
diff --git a/src/multiboot2/enums_to_str.c b/src/multiboot2/enums_to_str.c
index b4ef7a0..dcb8b14 100644
--- a/src/multiboot2/enums_to_str.c
+++ b/src/multiboot2/enums_to_str.c
@@ -6,8 +6,21 @@
 
 #include <stddef.h>
 
+const char *KernAux_Multiboot2_Header_Arch_to_str(
+    const enum KernAux_Multiboot2_Header_Arch arch
+) {
+    switch (arch) {
+    case KERNAUX_MULTIBOOT2_HEADER_ARCH_I386:
+        return "i386";
+    case KERNAUX_MULTIBOOT2_HEADER_ARCH_MIPS32:
+        return "MIPS32"; // TODO: specify this architecture in README
+    default:
+        return NULL;
+    }
+}
+
 const char *KernAux_Multiboot2_HTag_to_str(
-    enum KernAux_Multiboot2_HTag tag_type
+    const enum KernAux_Multiboot2_HTag tag_type
 ) {
     switch (tag_type) {
     case KERNAUX_MULTIBOOT2_HTAG_NONE:
@@ -38,7 +51,7 @@ const char *KernAux_Multiboot2_HTag_to_str(
 }
 
 const char *KernAux_Multiboot2_ITag_to_str(
-    enum KernAux_Multiboot2_ITag tag_type
+    const enum KernAux_Multiboot2_ITag tag_type
 ) {
     switch (tag_type) {
     case KERNAUX_MULTIBOOT2_ITAG_NONE:
@@ -89,3 +102,18 @@ const char *KernAux_Multiboot2_ITag_to_str(
         return NULL;
     }
 }
+
+const char *KernAux_Multiboot2_HTag_RelocatableHeader_Preference_to_str(
+    const enum KernAux_Multiboot2_HTag_RelocatableHeader_Preference pref
+) {
+    switch (pref) {
+    case KERNAUX_MULTIBOOT2_HTAG_RELOCATABLE_HEADER_PREFERENCE_NONE:
+        return "none";
+    case KERNAUX_MULTIBOOT2_HTAG_RELOCATABLE_HEADER_PREFERENCE_LOWEST:
+        return "lowest";
+    case KERNAUX_MULTIBOOT2_HTAG_RELOCATABLE_HEADER_PREFERENCE_HIGHEST:
+        return "highest";
+    default:
+        return NULL;
+    }
+}
diff --git a/src/multiboot2/header_is_valid.c b/src/multiboot2/header_is_valid.c
index 22344d2..6a8545b 100644
--- a/src/multiboot2/header_is_valid.c
+++ b/src/multiboot2/header_is_valid.c
@@ -15,8 +15,7 @@ bool KernAux_Multiboot2_Header_is_valid(
         return false;
     }
 
-    if (multiboot2_header->arch != KERNAUX_MULTIBOOT2_HEADER_ARCH_NONE &&
-        multiboot2_header->arch != KERNAUX_MULTIBOOT2_HEADER_ARCH_I386 &&
+    if (multiboot2_header->arch != KERNAUX_MULTIBOOT2_HEADER_ARCH_I386 &&
         multiboot2_header->arch != KERNAUX_MULTIBOOT2_HEADER_ARCH_MIPS32)
     {
         return false;
diff --git a/src/multiboot2/header_print.c b/src/multiboot2/header_print.c
index b3a492f..3fd31c0 100644
--- a/src/multiboot2/header_print.c
+++ b/src/multiboot2/header_print.c
@@ -13,7 +13,11 @@ void KernAux_Multiboot2_Header_print(
 ) {
     printf("Multiboot 2 header\n");
     printf("  magic: %u\n", multiboot2_header->magic);
-    printf("  arch: %u\n", multiboot2_header->arch);
+    printf(
+        "  arch: %u (%s)\n",
+        multiboot2_header->arch,
+        KernAux_Multiboot2_Header_Arch_to_str(multiboot2_header->arch)
+    );
     printf("  size: %u\n", multiboot2_header->total_size);
     printf("  checksum: %u\n", multiboot2_header->checksum);
 
diff --git a/tests/test_multiboot2_header_print.c b/tests/test_multiboot2_header_print.c
index eff576a..fa0bae9 100644
--- a/tests/test_multiboot2_header_print.c
+++ b/tests/test_multiboot2_header_print.c
@@ -13,9 +13,9 @@
 static const char output2[] =
     "Multiboot 2 header\n"
     "  magic: 3897708758\n"
-    "  arch: 1\n"
+    "  arch: 0 (i386)\n"
     "  size: 272\n"
-    "  checksum: 397258265\n"
+    "  checksum: 397258266\n"
     "Multiboot 2 header tag\n"
     "  type: 1 (information request)\n"
     "  flags: 0\n"