diff --git a/import/OpenXDK/include/xboxkrnl/rtl.h b/import/OpenXDK/include/xboxkrnl/rtl.h
index ea9f30706..3ec2640d6 100644
--- a/import/OpenXDK/include/xboxkrnl/rtl.h
+++ b/import/OpenXDK/include/xboxkrnl/rtl.h
@@ -209,7 +209,16 @@ XBSYSAPI EXPORTNUM(282) LARGE_INTEGER NTAPI RtlExtendedLargeIntegerDivide
 	IN	PULONG Remainder // OUT? OPTIONAL?
 );
 
-XBSYSAPI VOID *RtlExtendedMagicDivide;
+// ******************************************************************
+// * 0x011B - RtlExtendedMagicDivide()
+// ******************************************************************
+XBSYSAPI EXPORTNUM(283) LARGE_INTEGER NTAPI RtlExtendedMagicDivide
+(
+	IN	LARGE_INTEGER Dividend,
+	IN	LARGE_INTEGER MagicDivisor,
+	IN	CCHAR ShiftCount
+);
+
 XBSYSAPI VOID *RtlFillMemory;
 XBSYSAPI VOID *RtlFillMemoryUlong;
 
diff --git a/src/CxbxKrnl/EmuKrnlRtl.cpp b/src/CxbxKrnl/EmuKrnlRtl.cpp
index 0393250d5..467510366 100644
--- a/src/CxbxKrnl/EmuKrnlRtl.cpp
+++ b/src/CxbxKrnl/EmuKrnlRtl.cpp
@@ -532,6 +532,38 @@ XBSYSAPI EXPORTNUM(282) xboxkrnl::LARGE_INTEGER NTAPI xboxkrnl::RtlExtendedLarge
 	RETURN(ret);
 }
 
+// ******************************************************************
+// * 0x011B - RtlExtendedMagicDivide()
+// ******************************************************************
+XBSYSAPI EXPORTNUM(283) xboxkrnl::LARGE_INTEGER NTAPI xboxkrnl::RtlExtendedMagicDivide
+(
+	IN	LARGE_INTEGER Dividend,
+	IN	LARGE_INTEGER MagicDivisor,
+	IN	CCHAR ShiftCount
+)
+{
+	LOG_FUNC_BEGIN
+		LOG_FUNC_ARG(Dividend)
+		LOG_FUNC_ARG(MagicDivisor)
+		LOG_FUNC_ARG(ShiftCount)
+		LOG_FUNC_END;
+
+	LARGE_INTEGER ret;
+
+	// As long as there are no type casts for NtDll::LARGE_INTEGER to xboxkrnl::LARGE_INTEGER
+	// and back, just copy the only member manually :
+	// TODO : Simplify this by adding typecasts between NtDll and xboxkrnl versions of LARGE_INTEGER
+	NtDll::LARGE_INTEGER NtDividend;
+	NtDividend.QuadPart = Dividend.QuadPart;
+
+	NtDll::LARGE_INTEGER NtMagicDivisor;
+	NtMagicDivisor.QuadPart = MagicDivisor.QuadPart;
+
+	ret.QuadPart = NtDll::RtlExtendedMagicDivide(NtDividend, NtMagicDivisor, (NtDll::CCHAR)ShiftCount).QuadPart;
+
+	RETURN(ret);
+}
+
 // ******************************************************************
 // * 0x011E - RtlFreeAnsiString()
 // ******************************************************************
diff --git a/src/CxbxKrnl/EmuNtDll.cpp b/src/CxbxKrnl/EmuNtDll.cpp
index c84efb43d..557567252 100644
--- a/src/CxbxKrnl/EmuNtDll.cpp
+++ b/src/CxbxKrnl/EmuNtDll.cpp
@@ -125,6 +125,7 @@ IMPORT(RtlEqualString);
 IMPORT(RtlEqualUnicodeString);
 IMPORT(RtlExtendedIntegerMultiply);
 IMPORT(RtlExtendedLargeIntegerDivide);
+IMPORT(RtlExtendedMagicDivide);
 IMPORT(RtlFreeAnsiString);
 IMPORT(RtlFreeHeap);
 IMPORT(RtlInitAnsiString);
diff --git a/src/CxbxKrnl/EmuNtDll.h b/src/CxbxKrnl/EmuNtDll.h
index 7e6ae6790..a72c77961 100644
--- a/src/CxbxKrnl/EmuNtDll.h
+++ b/src/CxbxKrnl/EmuNtDll.h
@@ -1091,6 +1091,16 @@ typedef LARGE_INTEGER (NTAPI *FPTR_RtlExtendedLargeIntegerDivide)
 	OUT PULONG		 Remainder
 );
 
+// ******************************************************************
+// * RtlExtendedMagicDivide
+// ******************************************************************
+typedef LARGE_INTEGER (NTAPI *FPTR_RtlExtendedMagicDivide)
+(
+	IN LARGE_INTEGER Dividend,
+	IN LARGE_INTEGER MagicDivisor,
+	IN CCHAR		 ShiftCount
+);
+
 // ******************************************************************
 // * NtDelayExecution
 // ******************************************************************
@@ -1743,6 +1753,7 @@ EXTERN(RtlEqualString);
 EXTERN(RtlEqualUnicodeString);
 EXTERN(RtlExtendedIntegerMultiply);
 EXTERN(RtlExtendedLargeIntegerDivide);
+EXTERN(RtlExtendedMagicDivide);
 EXTERN(RtlFreeAnsiString);
 EXTERN(RtlFreeHeap);
 EXTERN(RtlInitAnsiString);
diff --git a/src/CxbxKrnl/KernelThunk.cpp b/src/CxbxKrnl/KernelThunk.cpp
index 597a8ef4e..d0eb93548 100644
--- a/src/CxbxKrnl/KernelThunk.cpp
+++ b/src/CxbxKrnl/KernelThunk.cpp
@@ -348,7 +348,7 @@ extern "C" CXBXKRNL_API uint32 CxbxKrnl_KernelThunkTable[379] =
 	(uint32)FUNC(&xboxkrnl::RtlEqualUnicodeString),           // 0x0118 (280)
 	(uint32)FUNC(&xboxkrnl::RtlExtendedIntegerMultiply),      // 0x0119 (281)
 	(uint32)FUNC(&xboxkrnl::RtlExtendedLargeIntegerDivide),   // 0x011A (282)
-	(uint32)PANIC(0x011B),                                    // 0x011B (283) RtlExtendedMagicDivide
+	(uint32)FUNC(&xboxkrnl::RtlExtendedMagicDivide),          // 0x011B (283)
 	(uint32)PANIC(0x011C),                                    // 0x011C (284) RtlFillMemory
 	(uint32)PANIC(0x011D),                                    // 0x011D (285) RtlFillMemoryUlong
 	(uint32)FUNC(&xboxkrnl::RtlFreeAnsiString),               // 0x011E (286)