diff --git a/arch/x86/include/asm/tables.h b/arch/x86/include/asm/tables.h
index 0aa6d9b33e..9e6754f2a5 100644
--- a/arch/x86/include/asm/tables.h
+++ b/arch/x86/include/asm/tables.h
@@ -14,6 +14,8 @@
  */
 #define ROM_TABLE_ADDR	0xf0000
 
+#define ROM_TABLE_ALIGN	1024
+
 /**
  * table_compute_checksum() - Compute a table checksum
  *
diff --git a/arch/x86/lib/tables.c b/arch/x86/lib/tables.c
index fc6c0d852a..19b0260935 100644
--- a/arch/x86/lib/tables.c
+++ b/arch/x86/lib/tables.c
@@ -44,27 +44,27 @@ void write_tables(void)
 
 #ifdef CONFIG_GENERATE_PIRQ_TABLE
 	rom_table_end = write_pirq_routing_table(rom_table_start);
-	rom_table_end = ALIGN(rom_table_end, 1024);
+	rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
 	rom_table_start = rom_table_end;
 #endif
 #ifdef CONFIG_GENERATE_SFI_TABLE
 	rom_table_end = write_sfi_table(rom_table_start);
-	rom_table_end = ALIGN(rom_table_end, 1024);
+	rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
 	rom_table_start = rom_table_end;
 #endif
 #ifdef CONFIG_GENERATE_MP_TABLE
 	rom_table_end = write_mp_table(rom_table_start);
-	rom_table_end = ALIGN(rom_table_end, 1024);
+	rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
 	rom_table_start = rom_table_end;
 #endif
 #ifdef CONFIG_GENERATE_ACPI_TABLE
 	rom_table_end = write_acpi_tables(rom_table_start);
-	rom_table_end = ALIGN(rom_table_end, 1024);
+	rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
 	rom_table_start = rom_table_end;
 #endif
 #ifdef CONFIG_GENERATE_SMBIOS_TABLE
 	rom_table_end = write_smbios_table(rom_table_start);
-	rom_table_end = ALIGN(rom_table_end, 1024);
+	rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
 	rom_table_start = rom_table_end;
 #endif
 }