diff --git a/fox32rom.def.okm b/fox32rom.def.okm
index 5b107b1..ddfcb5a 100644
--- a/fox32rom.def.okm
+++ b/fox32rom.def.okm
@@ -49,6 +49,8 @@ MODULE Fox32ROM;
     EXTERN PROCEDURE RYFSGetFileList: INT;
     EXTERN PROCEDURE RYFSWrite: INT;
 
+    EXTERN PROCEDURE StringToInt: INT;
+
     EXTERN PROCEDURE CopyMemoryChar: INT;
     EXTERN PROCEDURE CopyMemoryInt: INT;
     EXTERN PROCEDURE CopyString: INT;
diff --git a/fox32rom_okm.asm b/fox32rom_okm.asm
index 44e4327..0dae2e1 100644
--- a/fox32rom_okm.asm
+++ b/fox32rom_okm.asm
@@ -208,6 +208,13 @@ RYFSGetFileList:
 RYFSWrite:
     jmp ryfs_write
 
+; PROCEDURE StringToInt(
+;    str: POINTER TO CHAR;
+;    radix: INT;
+; ): INT;
+StringToInt:
+    jmp string_to_int
+
 ; PROCEDURE CopyMemoryChar(
 ;    source, destination: POINTER TO CHAR;
 ;    size: INT;