diff --git a/travis/build-lua.sh b/travis/build-lua.sh
index 77d6e528b..18fd6a740 100644
--- a/travis/build-lua.sh
+++ b/travis/build-lua.sh
@@ -2,9 +2,10 @@
 
 set -e
 
+LUA_ROOT="$HOME/lua53"
 LUA_URL="http://www.lua.org/ftp/lua-5.3.3.tar.gz"
 LUA_TAR=$(basename "$LUA_URL")
-LUA_DIR="${LUA_TAR%.tar.*}"
+LUA_DIR="$LUA_ROOT/${LUA_TAR%.tar.*}"
 LUA_SHA1="a0341bc3d1415b814cc738b2ec01ae56045d64ef"
 
 echo $LUA_TAR
@@ -16,8 +17,8 @@ sha1() {
 
 download() {
     echo "Downloading $LUA_URL"
-    wget -O "$LUA_TAR" "$LUA_URL"
-    tar xvf "$LUA_TAR"
+    wget -O "$LUA_ROOT/$LUA_TAR" "$LUA_URL"
+    tar xvf "$LUA_ROOT/$LUA_TAR"
 }
 
 build() {
@@ -26,25 +27,27 @@ build() {
 }
 
 main() {
-    mkdir -p "$HOME/lua53"
-    cd "$HOME/lua53"
+    mkdir -p "$LUA_ROOT"
+    cd "$LUA_ROOT"
     mkdir -p bin
 
-    if [ "$(sha1 "$LUA_TAR" 2>/dev/null)" != "$LUA_SHA1" ]; then
+    if [ "$(sha1 "$LUA_ROOT/$LUA_TAR" 2>/dev/null)" != "$LUA_SHA1" ]; then
         download
         build
     else
         echo "Already downloaded"
-    fi
 
-    if [ -x "$LUA_DIR/src/luac" ]; then
-        echo "Already built"
-    else
-        build
+        if [ -x "$LUA_DIR/src/luac" ]; then
+            echo "Already built"
+        else
+            build
+        fi
     fi
 
-    ln -sf "$(pwd)/$LUA_DIR/src/lua" bin/lua5.3
-    ln -sf "$(pwd)/$LUA_DIR/src/luac" bin/luac5.3
+    echo "Linking"
+    ln -sf "$LUA_DIR/src/lua" "$LUA_ROOT/bin/lua5.3"
+    ln -sf "$LUA_DIR/src/luac" "$LUA_ROOT/bin/luac5.3"
+    echo "Done"
 }
 
 main