diff --git a/asm/nonmatchings/code_fa4c0_len_3bf0/RemoveFortressKeys.s b/asm/nonmatchings/code_fa4c0_len_3bf0/RemoveFortressKeys.s
deleted file mode 100644
index b3756b9e4a..0000000000
--- a/asm/nonmatchings/code_fa4c0_len_3bf0/RemoveFortressKeys.s
+++ /dev/null
@@ -1,17 +0,0 @@
-.set noat # allow manual use of $at
-.set noreorder # don't insert nops after branches
-
-
-glabel RemoveFortressKeys
-/* 0FB644 802D6C94 27BDFFE8 */  addiu $sp, $sp, -0x18
-/* 0FB648 802D6C98 AFBF0010 */  sw    $ra, 0x10($sp)
-/* 0FB64C 802D6C9C 8C82000C */  lw    $v0, 0xc($a0)
-/* 0FB650 802D6CA0 0C0B1EAF */  jal   get_variable
-/* 0FB654 802D6CA4 8C450000 */   lw    $a1, ($v0)
-/* 0FB658 802D6CA8 0C03A8EE */  jal   subtract_fortress_keys
-/* 0FB65C 802D6CAC 0040202D */   daddu $a0, $v0, $zero
-/* 0FB660 802D6CB0 8FBF0010 */  lw    $ra, 0x10($sp)
-/* 0FB664 802D6CB4 24020002 */  addiu $v0, $zero, 2
-/* 0FB668 802D6CB8 03E00008 */  jr    $ra
-/* 0FB66C 802D6CBC 27BD0018 */   addiu $sp, $sp, 0x18
-
diff --git a/src/code_fa4c0_len_3bf0.c b/src/code_fa4c0_len_3bf0.c
index d8d1f7d9a6..581b2386d8 100644
--- a/src/code_fa4c0_len_3bf0.c
+++ b/src/code_fa4c0_len_3bf0.c
@@ -252,7 +252,12 @@ s32 CountFortressKeys(script_context* script, s32 initialCall) {
     return 2;
 }
 
-INCLUDE_ASM(code_fa4c0_len_3bf0, RemoveFortressKeys);
+s32 RemoveFortressKeys(script_context* script, s32 initialCall) {
+    s32 num = get_variable(script, *script->ptrReadPos);
+
+    subtract_fortress_keys(num);
+    return 2;
+}
 
 INCLUDE_ASM(code_fa4c0_len_3bf0, MakeItemEntity);