diff --git a/root/defaults/stats b/root/defaults/stats
index 19296f4..e7788e6 100755
--- a/root/defaults/stats
+++ b/root/defaults/stats
@@ -4,31 +4,31 @@ output="/app/www/.stats"
 nic="eth0"
 
 generate_index() {
-    cat <<-EOF
-    <!doctype html>
-    <html lang="en">
-    <head>
-        <meta charset="utf-8">
-        <meta http-equiv="cache-control" content=no-cache">
-        <meta http-equiv="refresh" content="3000">
-        <title>Alpine Linux mirror statistics</title>
-    </head>
-    <body>
-        <table border="0">
-            <tr><td><img src="summary.png" alt="summary"></td><td><img src="hours.png" alt="hours"></td></tr>
-            <tr><td rowspan="2"><img src="days.png" alt="days"></td></tr>
-            <tr><td><img src="months.png" alt="months"></td></tr>
-        </table>
-    </body>
-    </html>
-    EOF
+cat <<EOF
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta http-equiv="cache-control" content="no-cache">
+    <meta http-equiv="refresh" content="3000">
+    <title>Alpine Linux mirror statistics</title>
+</head>
+<body>
+    <table border="0">
+        <tr><td><img src="summary.png" alt="summary"></td><td><img src="hours.png" alt="hours"></td></tr>
+        <tr><td rowspan="2"><img src="days.png" alt="days"></td></tr>
+        <tr><td><img src="months.png" alt="months"></td></tr>
+    </table>
+</body>
+</html>
+EOF
 }
 
-if  [ ! -f "$output"/index.html ]; then
-    mkdir -p $output
-    generate_index > "$output"/index.html
+if [ ! -f "$output/index.html" ]; then
+    mkdir -p "$output"
+    generate_index > "$output/index.html"
 fi
 
 for type in hours days months summary hsummary vsummary; do
-    vnstati --${type} -i $nic -o $output/${type}.png
+    vnstati --${type} -i "$nic" -o "$output/${type}.png"
 done
\ No newline at end of file
