diff --git a/.travis_setup.sh b/.travis_setup.sh
index a8a8d9b..9eb7ae6 100644
--- a/.travis_setup.sh
+++ b/.travis_setup.sh
@@ -2,24 +2,26 @@
 # Sets up Lua and Luarocks. 
 # LUA must be "Lua 5.1", "Lua 5.2" or "LuaJIT 2.0". 
 
+set -e
+
 if [ "$LUA" == "LuaJIT 2.0" ]; then
-  curl http://luajit.org/download/LuaJIT-2.0.2.tar.gz | tar xz
+  wget -O - http://luajit.org/download/LuaJIT-2.0.2.tar.gz | tar xz
   cd LuaJIT-2.0.2
   make && sudo make install INSTALL_TSYMNAME=lua;
 else
   if [ "$LUA" == "Lua 5.1" ]; then
-    curl http://www.lua.org/ftp/lua-5.1.5.tar.gz | tar xz
+    wget -O - http://www.lua.org/ftp/lua-5.1.5.tar.gz | tar xz
     cd lua-5.1.5;
   elif [ "$LUA" == "Lua 5.2" ]; then
-    curl http://www.lua.org/ftp/lua-5.2.3.tar.gz | tar xz
+    wget -O - http://www.lua.org/ftp/lua-5.2.3.tar.gz | tar xz
     cd lua-5.2.3;
   fi
   sudo make linux install;
 fi
 
 cd ..
-curl http://luarocks.org/releases/luarocks-2.1.2.tar.gz | tar xz
-cd luarocks-2.1.2
+wget -O - http://luarocks.org/releases/luarocks-2.2.0.tar.gz | tar xz
+cd luarocks-2.2.0
 
 if [ "$LUA" == "LuaJIT 2.0" ]; then
   ./configure --with-lua-include=/usr/local/include/luajit-2.0;