diff --git a/src/mimedb.rs b/src/mimedb.rs
index abaf476..2ee86ed 100644
--- a/src/mimedb.rs
+++ b/src/mimedb.rs
@@ -30,8 +30,8 @@ impl MimeDb for InferDb {
 			// and then there's some other stuff we don't care about right now
 
 			// so, here comes our fancy pants """""SGML-ish validator"""""
-			for i in 0..buf.len() {
-				match buf[i] {
+			for c in buf {
+				match c {
 					// whitespace (according to https://www.w3.org/TR/xml/#NT-S)
 					b'\t' | b'\r' | b'\n' | b'\x20' => continue,
 					b'<' => break,
@@ -43,10 +43,10 @@ impl MimeDb for InferDb {
 			// - split the buffer up into chunks separated by the less than sign
 			// - check to see if this chunk starts with any of these identifiers:
 			let identifiers: Vec<&[u8]> = vec![
-				"svg".as_bytes(),
-				"SVG".as_bytes(),
-				"!DOCTYPE svg".as_bytes(),
-				"!DOCTYPE SVG".as_bytes()
+				b"svg",
+				b"SVG",
+				b"!DOCTYPE svg",
+				b"!DOCTYPE SVG"
 			];
 			// - if it does, the nested `any` will short circuit and immediately return true, causing the parent `any` to do
 			//   the same