diff --git a/reactos/boot/freeldr/freeldr/fs/pxe.c b/reactos/boot/freeldr/freeldr/fs/pxe.c
index 2d8799a89f9..bb1df782f9d 100644
--- a/reactos/boot/freeldr/freeldr/fs/pxe.c
+++ b/reactos/boot/freeldr/freeldr/fs/pxe.c
@@ -163,9 +163,6 @@ static ARC_STATUS PxeOpen(CHAR* Path, OPENMODE OpenMode, ULONG* FileId)
     /* Retrieve the path length without NULL terminator */
     PathLen = (Path ? min(strlen(Path), sizeof(_OpenFileName) - 1) : 0);
 
-    /* Zero out the file name */
-    RtlZeroMemory(_OpenFileName, sizeof(_OpenFileName));
-
     /* Lowercase the path and always use slashes as separators */
     for (i = 0; i < PathLen; i++)
     {
@@ -175,6 +172,9 @@ static ARC_STATUS PxeOpen(CHAR* Path, OPENMODE OpenMode, ULONG* FileId)
             _OpenFileName[i] = tolower(Path[i]);
     }
 
+    /* Zero out rest of the file name */
+    RtlZeroMemory(_OpenFileName + PathLen, sizeof(_OpenFileName) - PathLen);
+
     RtlZeroMemory(&sizeData, sizeof(sizeData));
     sizeData.ServerIPAddress = _ServerIP;
     RtlCopyMemory(sizeData.FileName, _OpenFileName, sizeof(_OpenFileName));