diff --git a/reactos/lib/crt/include/internal/tls.h b/reactos/lib/crt/include/internal/tls.h
index 690aa398784..1ad72f2ba3f 100644
--- a/reactos/lib/crt/include/internal/tls.h
+++ b/reactos/lib/crt/include/internal/tls.h
@@ -9,14 +9,13 @@
 #include <winbase.h>
 #include <winnt.h>
 
-#include <msvcrt/crttypes.h>
 #include <stddef.h>
 
 typedef struct _ThreadData
 {
   int terrno;                   /* *nix error code */
   unsigned long tdoserrno;      /* Win32 error code (for I/O only) */
-  unsigned LONGLONG tnext;      /* used by rand/srand */
+  unsigned __int64 tnext;       /* used by rand/srand */
 
   char *lasttoken;              /* used by strtok */
   wchar_t *wlasttoken;          /* used by wcstok */
diff --git a/reactos/lib/crt/stdlib/rand.c b/reactos/lib/crt/stdlib/rand.c
index ddcfe47d1cd..eb7e38b8bf1 100644
--- a/reactos/lib/crt/stdlib/rand.c
+++ b/reactos/lib/crt/stdlib/rand.c
@@ -11,11 +11,7 @@ rand(void)
 {
   PTHREADDATA ThreadData = GetThreadData();
 
-#ifdef HAVE_LONGLONG
   ThreadData->tnext = ThreadData->tnext * 0x5deece66dLL + 11;
-#else
-  ThreadData->tnext = ThreadData->tnext * 0x5deece66dL + 11;
-#endif
   return (int)((ThreadData->tnext >> 16) & RAND_MAX);
 }