diff --git a/images/schemat/ISP gateway.png b/images/schemat/ISP_gateway.png
similarity index 99%
rename from images/schemat/ISP gateway.png
rename to images/schemat/ISP_gateway.png
index cbd8249..1de6008 100644
Binary files a/images/schemat/ISP gateway.png and b/images/schemat/ISP_gateway.png differ