diff --git a/arm9/source/patches/arm9/LastWindowCrcPatch.h b/arm9/source/patches/arm9/LastWindowCrcPatch.h
index 14db117..6e50dbb 100644
--- a/arm9/source/patches/arm9/LastWindowCrcPatch.h
+++ b/arm9/source/patches/arm9/LastWindowCrcPatch.h
@@ -11,14 +11,15 @@
 /// So the CRC is sensitive not only to code modifications, but also to which encrypted functions
 /// were run, and how many times they were run.
 ///
-/// The current DS Protect patch modifies NotA1, causes one of its subfunction to run twice, and
+/// The current DS Protect patch modifies NotA1, causes one of its subfunctions to run twice, and
 /// the other subfunction to not be run, which obviously breaks the CRC.
 ///
-/// Another region is also CRCed, from 0202DB34 to 02030334. What resides here is unknown, it does not
-/// contain any commonly modified functions such as AP or card reading.
+/// Another region is also CRCed, from 0202DB34 to 02030334. What resides here is the game functions
+/// that are supplied to DS Protect as callbacks. These are left unmodified, but to be sure, the CRC
+/// for them is patched anyway.
 ///
-/// To make things more annoying, the memory location of the correct CRC is randomized, and the code
-/// that checks the CRC resides in a compressed overlay which is loaded into ITCM. This same function
+/// To make things more annoying, the memory locations of the correct CRCs are randomized, and the code
+/// that checks the CRCs resides in a compressed overlay which is loaded into ITCM. This same function
 /// also receives several dummy checks that are expected to fail, and so cannot be patched to always
 /// report the CRC matches.
 ///
diff --git a/arm9/source/patches/arm9/LastWindowCrcPatchCode.s b/arm9/source/patches/arm9/LastWindowCrcPatchCode.s
index 444b378..aa0a2ad 100644
--- a/arm9/source/patches/arm9/LastWindowCrcPatchCode.s
+++ b/arm9/source/patches/arm9/LastWindowCrcPatchCode.s
@@ -11,9 +11,9 @@ patch_lastwindowcrc_entry:
     cmp r1, r3
     beq crc_dsprotect
 
-    ldr r3, =0x0202DB34 // CRC of other code region (unknown)
+    ldr r3, =0x0202DB34 // CRC of DS Protect callbacks
     cmp r1, r3
-    beq crc_unk
+    beq crc_callback
 
     swi #0xE // Normal CRC if address does not match (never hit?)
     bx lr
@@ -22,7 +22,7 @@ crc_dsprotect:
     ldr r0, =0x67D7
     bx lr
 
-crc_unk:
+crc_callback:
     ldr r0, =0x0D1E
     bx lr