diff --git a/windows2usb b/windows2usb
index 9609fe8..248e001 100755
--- a/windows2usb
+++ b/windows2usb
@@ -107,7 +107,11 @@ function get_dev_partition_num() {
 }
 
 function write_uefintfs() {
-    cat "$dirpath/uefi-ntfs.img" > "$1"
+    if [ -a "$dirpath/uefi-ntfs.img" ]; then
+        cat "$dirpath/uefi-ntfs.img" > "$1"
+    elif [ -a "/usr/share/windows2usb/uefi-ntfs.img" ]; then
+        cat "/usr/share/windows2usb/uefi-ntfs.img" > "$1"
+    fi
 }
 
 function extract_iso() {