diff --git a/24-05-05_13-29-30 3977.png b/24-05-05_13-29-30_3977.png
similarity index 100%
rename from 24-05-05_13-29-30 3977.png
rename to 24-05-05_13-29-30_3977.png
diff --git a/README.md b/README.md
index f3c6ff6..2b1b48b 100644
--- a/README.md
+++ b/README.md
@@ -390,7 +390,7 @@ The lengths of legs expectedly varied depending on the passage profile and turns
 
 With 10 nodes we faced the Meshtastic hard-coded limitation of maximum 7 hops between end nodes, so the end-to-end tests had to be for now limited to two segments of this length. The time for a message to traverse the whole link was several seconds.
 
-![Tracing route of 7 hops between two end nodes](24-05-05_13-29-30 3977.png)
+![Tracing route of 7 hops between two end nodes](24-05-05_13-29-30_3977.png)
 
 # Footnotes