diff --git a/SDK/C/TitanEngine.h b/SDK/C/TitanEngine.h
index c9f62e5..55d01c2 100644
--- a/SDK/C/TitanEngine.h
+++ b/SDK/C/TitanEngine.h
@@ -586,12 +586,11 @@ typedef struct
     DWORD OriginalCOMTableSize;
 } FILE_FIX_INFO, *PFILE_FIX_INFO;
 
-typedef struct DECLSPEC_ALIGN(16)
+typedef struct DECLSPEC_ALIGN(16) _XmmRegister_t
 {
     ULONGLONG Low;
     LONGLONG High;
-}
-XmmRegister_t;
+} XmmRegister_t;
 
 typedef struct
 {
diff --git a/TitanEngine/stdafx.h b/TitanEngine/stdafx.h
index 398edf4..7dec727 100644
--- a/TitanEngine/stdafx.h
+++ b/TitanEngine/stdafx.h
@@ -93,12 +93,11 @@
 #define CONTEXT_EXTENDED_REGISTERS 0
 #endif
 
-typedef struct DECLSPEC_ALIGN(16)
+typedef struct DECLSPEC_ALIGN(16) _XmmRegister_t
 {
     ULONGLONG Low;
     LONGLONG High;
-}
-XmmRegister_t;
+} XmmRegister_t;
 
 typedef struct
 {