diff --git a/linker_scripts/symbols/addr.txt b/linker_scripts/symbols/addr.txt
index 3ccc047..62e0d0d 100644
--- a/linker_scripts/symbols/addr.txt
+++ b/linker_scripts/symbols/addr.txt
@@ -48,6 +48,7 @@ nuSiCallBackList = 0x800A9EA0;
 nuGfxTaskEndFunc = 0x800A9E88;
 nuStackSiMgrThread = 0x800BC030;
 nuStackGfxThread = 0x800C0370;
+nuContPfs = 0x800E99E8;
 
 nuBoot = 0x8007F880;
 nuScCreateScheduler = 0x80088C50; // rom:0x19050
diff --git a/src/nu/nucontpakopen.c b/src/nu/nucontpakopen.c
index 292c050..5ea5dd1 100644
--- a/src/nu/nucontpakopen.c
+++ b/src/nu/nucontpakopen.c
@@ -1,3 +1,17 @@
 #include "common.h"
 
-INCLUDE_ASM(const s32, "nu/nucontpakopen", nuContPakOpen);
+#include "nu/nusys.h"
+
+/* 1AFD0 8008ABD0 */
+s32 nuContPakOpen(NUContPakFile* file, u32 contNo) {
+    OSPfs* pfs;
+
+    pfs = &nuContPfs[contNo];
+    file->pfs = pfs;
+
+    pfs->channel = contNo;
+
+    file->error = nuSiSendMesg(NU_CONT_PAK_OPEN_MSG, file);
+    return file->error;
+}
+