diff --git a/reactos/dll/win32/kernel32/client/file/filemap.c b/reactos/dll/win32/kernel32/client/file/filemap.c
index 4b6f90573f8..28a85c79ccb 100644
--- a/reactos/dll/win32/kernel32/client/file/filemap.c
+++ b/reactos/dll/win32/kernel32/client/file/filemap.c
@@ -346,16 +346,14 @@ NTAPI
 FlushViewOfFile(IN LPCVOID lpBaseAddress,
                 IN SIZE_T dwNumberOfBytesToFlush)
 {
-    SIZE_T NumberOfBytesToFlush;
     NTSTATUS Status;
+    PVOID BaseAddress = (PVOID)lpBaseAddress;
+    SIZE_T NumberOfBytesToFlush = dwNumberOfBytesToFlush;
     IO_STATUS_BLOCK IoStatusBlock;
 
-    /* Save amount of bytes to flush to a local var */
-    NumberOfBytesToFlush = dwNumberOfBytesToFlush;
-
     /* Flush the view */
     Status = NtFlushVirtualMemory(NtCurrentProcess(),
-                                  (LPVOID)lpBaseAddress,
+                                  &BaseAddress,
                                   &NumberOfBytesToFlush,
                                   &IoStatusBlock);
     if (!NT_SUCCESS(Status) && (Status != STATUS_NOT_MAPPED_DATA))