diff --git a/src/core/file_sys/program_metadata.cpp b/src/core/file_sys/program_metadata.cpp
index 041617bb5..a6dcebcc3 100644
--- a/src/core/file_sys/program_metadata.cpp
+++ b/src/core/file_sys/program_metadata.cpp
@@ -8,9 +8,6 @@
 #include "core/file_sys/program_metadata.h"
 #include "core/loader/loader.h"
 
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// FileSys namespace
-
 namespace FileSys {
 
 Loader::ResultStatus ProgramMetadata::Load(const std::string& file_path) {
diff --git a/src/core/file_sys/program_metadata.h b/src/core/file_sys/program_metadata.h
index 4e04a8e68..b80a08485 100644
--- a/src/core/file_sys/program_metadata.h
+++ b/src/core/file_sys/program_metadata.h
@@ -15,9 +15,6 @@ namespace Loader {
 enum class ResultStatus;
 }
 
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// FileSys namespace
-
 namespace FileSys {
 
 enum class ProgramAddressSpaceType : u8 {
@@ -100,7 +97,7 @@ private:
         u32_le sac_size;
         u32_le kac_offset;
         u32_le kac_size;
-        std::array<u8, 0x8> padding;
+        INSERT_PADDING_BYTES(0x8);
     };
 
     static_assert(sizeof(AcidHeader) == 0x240, "ACID header structure size is wrong");
@@ -109,14 +106,14 @@ private:
         std::array<char, 4> magic;
         std::array<u8, 0xC> reserved;
         u64_le title_id;
-        std::array<u8, 0x8> padding;
+        INSERT_PADDING_BYTES(0x8);
         u32_le fah_offset;
         u32_le fah_size;
         u32_le sac_offset;
         u32_le sac_size;
         u32_le kac_offset;
         u32_le kac_size;
-        std::array<u8, 0x8> padding_2;
+        INSERT_PADDING_BYTES(0x8);
     };
 
     static_assert(sizeof(AciHeader) == 0x40, "ACI0 header structure size is wrong");
@@ -125,7 +122,7 @@ private:
 
     struct FileAccessControl {
         u8 version;
-        std::array<u8, 3> padding;
+        INSERT_PADDING_BYTES(3);
         u64_le permissions;
         std::array<u8, 0x20> unknown;
     };
@@ -134,7 +131,7 @@ private:
 
     struct FileAccessHeader {
         u8 version;
-        std::array<u8, 3> padding;
+        INSERT_PADDING_BYTES(3);
         u64_le permissions;
         u32_le unk_offset;
         u32_le unk_size;