diff --git a/assets/models/GameBoard.mtl b/assets/models/GameBoard.mtl
index 08a8b62..2fb3da1 100644
--- a/assets/models/GameBoard.mtl
+++ b/assets/models/GameBoard.mtl
@@ -9,7 +9,7 @@ Ke 0.000000 0.000000 0.000000
 Ni 1.500000
 d 1.000000
 illum 2
-map_Kd gameboard:brackground.png
+map_Kd gameboard_brackground.png
 
 newmtl Blue
 Ns 250.000000
diff --git a/assets/models/gameboard:brackground.png b/assets/models/gameboard_brackground.png
similarity index 100%
rename from assets/models/gameboard:brackground.png
rename to assets/models/gameboard_brackground.png