diff --git a/libctru/include/3ds/os.h b/libctru/include/3ds/os.h
index 9829097..1b7dc0e 100644
--- a/libctru/include/3ds/os.h
+++ b/libctru/include/3ds/os.h
@@ -78,7 +78,7 @@ typedef struct
 	u32 firmlaunch_flags;
 	u8  unk_0x24[0xc];
 	u32 app_memtype;
-	u8  unk_0x34[0x10];
+	u8  unk_0x34[0xc];
 	u32 memregion_sz[3];
 	u8  unk_0x4c[0x14];
 	u32 firm_ver;