diff --git a/xtldr/textui.c b/xtldr/textui.c
index a2a6aad..c9aacef 100644
--- a/xtldr/textui.c
+++ b/xtldr/textui.c
@@ -1182,19 +1182,34 @@ VOID
 BlpDrawDialogMessage(IN PXTBL_DIALOG_HANDLE Handle,
                      IN PWCHAR Message)
 {
-    PWCHAR MsgLine, LastMsgLine;
-    SIZE_T Index, Length;
+    PWCHAR Msg, MsgLine, LastMsgLine;
+    SIZE_T Index, Length, LineLength;
+    EFI_STATUS Status;
     ULONG Line;
 
+    /* Allocate memory for dialog box message */
+    Length = RtlWideStringLength(Message, 0);
+    Status = BlMemoryAllocatePool(Length * sizeof(WCHAR), (PVOID *)&Msg);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Memory allocation failure, print debug message and return */
+        BlDebugPrint(L"ERROR: Memory allocation failure (Status Code: 0x%lx)\n", Status);
+        return;
+    }
+
+    /* Make a copy of dialog box message */
+    RtlCopyMemory(Msg, Message, Length * sizeof(WCHAR));
+    Msg[Length] = 0;
+
     /* Tokenize dialog box message */
-    MsgLine = RtlTokenizeWideString(Message, L"\n", &LastMsgLine);
+    MsgLine = RtlTokenizeWideString(Msg, L"\n", &LastMsgLine);
 
     /* Iterate through message lines */
     Line = 0;
     while(MsgLine)
     {
         /* Determine line length */
-        Length = RtlWideStringLength(Message, 0);
+        LineLength = RtlWideStringLength(MsgLine, 0);
 
         /* Write line in the dialog box */
         BlSetCursorPosition(Handle->PosX + 2, Handle->PosY + 2 + Line);
@@ -1202,10 +1217,10 @@ BlpDrawDialogMessage(IN PXTBL_DIALOG_HANDLE Handle,
         BlConsolePrint(L"%S", MsgLine);
 
         /* Check if message line is shorter than the dialog box working area */
-        if(Length < Handle->Width - 4)
+        if(LineLength < Handle->Width - 4)
         {
             /* Fill the rest of the line with spaces */
-            for(Index = Length; Index < Handle->Width - 4; Index++)
+            for(Index = LineLength; Index < Handle->Width - 4; Index++)
             {
                 BlConsolePrint(L" ");
             }