diff --git a/librecomp/src/pak.cpp b/librecomp/src/pak.cpp
index f8d42c3..eac5192 100644
--- a/librecomp/src/pak.cpp
+++ b/librecomp/src/pak.cpp
@@ -49,7 +49,7 @@ extern "C" void osPfsAllocateFile_recomp(uint8_t* rdram, recomp_context* ctx) {
     u32 game_code = _arg<2, u32>(rdram, ctx);
     PTR(u8) game_name = _arg<3, PTR(u8)>(rdram, ctx);
     PTR(u8) ext_name = _arg<4, PTR(u8)>(rdram, ctx);
-    int file_size = _arg<5, int>(rdram, ctx);
+    int nbytes = _arg<5, int>(rdram, ctx);
     PTR(s32) file_no = _arg<6, PTR(s32)>(rdram, ctx);
     u8 game_name_proxy[PFS_FILE_NAME_LEN];
     u8 ext_name_proxy[PFS_FILE_EXT_LEN];
@@ -60,7 +60,7 @@ extern "C" void osPfsAllocateFile_recomp(uint8_t* rdram, recomp_context* ctx) {
     for (uint32_t i = 0; i < PFS_FILE_EXT_LEN; i++) {
         ext_name_proxy[i] = MEM_B(i, ext_name);
     }
-    s32 ret = osPfsAllocateFile(PASS_RDRAM pfs, company_code, game_code, game_name_proxy, ext_name_proxy, file_size, file_no);
+    s32 ret = osPfsAllocateFile(PASS_RDRAM pfs, company_code, game_code, game_name_proxy, ext_name_proxy, nbytes, file_no);
     _return<s32>(ctx, ret);
 }
 
diff --git a/ultramodern/include/ultramodern/ultra64.h b/ultramodern/include/ultramodern/ultra64.h
index 8c743e7..7cb288d 100644
--- a/ultramodern/include/ultramodern/ultra64.h
+++ b/ultramodern/include/ultramodern/ultra64.h
@@ -340,10 +340,10 @@ s32 osPfsRepairId(RDRAM_ARG PTR(OSPfs) pfs);
 s32 osPfsInit(RDRAM_ARG PTR(OSMesgQueue) queue, PTR(OSPfs) pfs, int channel);
 s32 osPfsReFormat(RDRAM_ARG PTR(OSPfs) pfs, PTR(OSMesgQueue) queue, int channel);
 s32 osPfsChecker(RDRAM_ARG PTR(OSPfs) pfs);
-s32 osPfsAllocateFile(RDRAM_ARG PTR(OSPfs) pfs, u16 company_code, u32 game_code, u8* game_name, u8* ext_name, int file_size_in_bytes, PTR(s32) file_no);
+s32 osPfsAllocateFile(RDRAM_ARG PTR(OSPfs) pfs, u16 company_code, u32 game_code, u8* game_name, u8* ext_name, int nbytes, PTR(s32) file_no);
 s32 osPfsFindFile(RDRAM_ARG PTR(OSPfs) pfs, u16 company_code, u32 game_code, u8* game_name, u8* ext_name, PTR(s32) file_no);
 s32 osPfsDeleteFile(RDRAM_ARG PTR(OSPfs) pfs, u16 company_code, u32 game_code, u8* game_name, u8* ext_name);
-s32 osPfsReadWriteFile(RDRAM_ARG PTR(OSPfs) pfs, s32 file_no, u8 flag, int offset, int size_in_bytes, u8* data_buffer);
+s32 osPfsReadWriteFile(RDRAM_ARG PTR(OSPfs) pfs, s32 file_no, u8 flag, int offset, int nbytes, u8* data_buffer);
 s32 osPfsFileState(RDRAM_ARG PTR(OSPfs) pfs, s32 file_no, PTR(OSPfsState) state);
 s32 osPfsGetLabel(RDRAM_ARG PTR(OSPfs) pfs, u8* label, PTR(int) len);
 s32 osPfsSetLabel(RDRAM_ARG PTR(OSPfs) pfs, u8* label);