diff --git a/core.js b/core.js
index 75358433..ddac40eb 100644
--- a/core.js
+++ b/core.js
@@ -590,7 +590,7 @@ async function _fromTokenizer(tokenizer) {
 			};
 		}
 
-		if (check([0x1C, 0x00, 0xFE, 0x00], {offset: 8})) {
+		if (check([0x1C, 0x00, 0xFE, 0x00], {offset: 8}) || check([0x1F, 0x00, 0x0B, 0x00], {offset: 8})) {
 			return {
 				ext: 'nef',
 				mime: 'image/x-nikon-nef'
diff --git a/fixture/fixture4.nef b/fixture/fixture4.nef
new file mode 100644
index 00000000..be76f9d4
Binary files /dev/null and b/fixture/fixture4.nef differ
diff --git a/test.js b/test.js
index f05817d3..a8998993 100644
--- a/test.js
+++ b/test.js
@@ -38,7 +38,9 @@ const names = {
 	],
 	nef: [
 		'fixture',
-		'fixture2'
+		'fixture2',
+		'fixture3',
+		'fixture4'
 	],
 	'3gp': [
 		'fixture',