diff --git a/rdisk.c b/rdisk.c
index a02e631..94a45a6 100644
--- a/rdisk.c
+++ b/rdisk.c
@@ -7,6 +7,7 @@
 #include <OSUtils.h>
 
 #include "rdisk.h"
+#include "rdisk_syscall.h"
 
 // Decode keyboard settings
 static void RDDecodeKeySettings(RDiskStorage_t *c) {
diff --git a/rdisk.h b/rdisk.h
index 4e07de5..1b326ee 100644
--- a/rdisk.h
+++ b/rdisk.h
@@ -14,12 +14,6 @@
 
 #define RDISK_COMPRESS_ICON_ENABLE
 
-#pragma parameter __D0 RDReadXPRAM(__D0, __D1, __A0)
-OSErr RDReadXPRAM(short numBytes, short whichByte, Ptr dest) = {0x4840, 0x3001, 0xA051};
-
-#pragma parameter __D0 RDiskAddDrive(__D1, __D0, __A0)
-OSErr RDiskAddDrive(short drvrRefNum, short drvNum, DrvQElPtr dq) = {0x4840, 0x3001, 0xA04E};
-
 static inline char IsAPressed() { return *((volatile char*)0x174) & 0x01; }
 static inline char IsRPressed() { return *((volatile char*)0x175) & 0x80; }
 
diff --git a/rdisk_syscall.h b/rdisk_syscall.h
new file mode 100644
index 0000000..5ee0e7c
--- /dev/null
+++ b/rdisk_syscall.h
@@ -0,0 +1,13 @@
+#ifndef RDISK_SYSCALL_H
+#define RDISK_SYSCALL_H
+
+#include <Disks.h>
+#include <OSUtils.h>
+
+#pragma parameter __D0 RDReadXPRAM(__D0, __D1, __A0)
+OSErr RDReadXPRAM(short numBytes, short whichByte, Ptr dest) = {0x4840, 0x3001, 0xA051};
+
+#pragma parameter __D0 RDiskAddDrive(__D1, __D0, __A0)
+OSErr RDiskAddDrive(short drvrRefNum, short drvNum, DrvQElPtr dq) = {0x4840, 0x3001, 0xA04E};
+
+#endif