diff --git a/testing/install_script.sh b/testing/install_script.sh
index d541e25..e77e194 100644
--- a/testing/install_script.sh
+++ b/testing/install_script.sh
@@ -98,7 +98,7 @@ sleep 1
 #		sed -i 's/server-port=25565/server-port='$GAME_PORT_TCP'/g' /MCserver/server.properties
 #fi
 
-sed -i 's/server-port='*'/server-port='$GAME_PORT_TCP'/g' /MCserver/server.properties
+sed -i '/server-port='*'/c\server-port='$GAME_PORT_TCP'' /MCserver/server.properties
 sleep 30
 
 # Set permissions.