diff --git a/index.js b/index.js
index e662321..e62f95e 100644
--- a/index.js
+++ b/index.js
@@ -6,7 +6,7 @@ const isSvg = input => {
 		return false;
 	}
 
-	input = input.toString().trim();
+	input = input.toString().trim().replaceAll('\n', ' ');
 
 	if (input.length === 0) {
 		return false;
diff --git a/test.js b/test.js
index 7a53d27..3cca99e 100644
--- a/test.js
+++ b/test.js
@@ -20,6 +20,13 @@ test('valid SVGs', t => {
 <svg version="1.1">
 </svg>
 `));
+	t.true(isSvg(`<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+xmlns="http://www.w3.org/2000/svg"
+width="75"
+height="75"
+version="1.1"
+></svg>`));
 });
 
 test('invalid SVGs', t => {