diff --git a/sdk/include/ndk/ketypes.h b/sdk/include/ndk/ketypes.h
index 580a9fdac63..0a686cf6053 100644
--- a/sdk/include/ndk/ketypes.h
+++ b/sdk/include/ndk/ketypes.h
@@ -125,11 +125,6 @@ Author:
 //
 #define THREAD_ALERT_INCREMENT          2
 
-//
-// Physical memory offset of KUSER_SHARED_DATA
-//
-#define KI_USER_SHARED_DATA_PHYSICAL    0x41000
-
 //
 // Quantum values and decrements
 //
@@ -164,6 +159,11 @@ typedef struct _FIBER                                    /* Field offsets:    */
 #endif
 } FIBER, *PFIBER;
 
+//
+// KUSER_SHARED_DATA location in User Mode
+//
+#define USER_SHARED_DATA                0x7FFE0000
+
 #ifndef NTOS_MODE_USER
 //
 // Number of dispatch codes supported by KINTERRUPT
diff --git a/sdk/include/ndk/pstypes.h b/sdk/include/ndk/pstypes.h
index 344a731d834..f23c01ffa8e 100644
--- a/sdk/include/ndk/pstypes.h
+++ b/sdk/include/ndk/pstypes.h
@@ -45,11 +45,6 @@ extern POBJECT_TYPE NTSYSAPI PsJobType;
 
 #endif // !NTOS_MODE_USER
 
-//
-// KUSER_SHARED_DATA location in User Mode
-//
-#define USER_SHARED_DATA                        (0x7FFE0000)
-
 //
 // Global Flags
 //
diff --git a/sdk/include/xdk/arm64/ke.h b/sdk/include/xdk/arm64/ke.h
index 9b123794e12..c680f06b1d4 100644
--- a/sdk/include/xdk/arm64/ke.h
+++ b/sdk/include/xdk/arm64/ke.h
@@ -13,6 +13,7 @@ $if (_WDMDDK_)
 #define PROFILE_LEVEL           15
 #define HIGH_LEVEL              15
 
+#define KI_USER_SHARED_DATA     0xFFFFF78000000000ULL
 #define SharedUserData          ((KUSER_SHARED_DATA * const)KI_USER_SHARED_DATA)
 
 #define PAGE_SIZE               0x1000