diff --git a/index.js b/index.js
index b66e442..72f9346 100644
--- a/index.js
+++ b/index.js
@@ -127,14 +127,15 @@ header.decode = function (buf, offset) {
     id: buf.readUInt16BE(offset),
     type: flags & RESPONSE_FLAG ? 'response' : 'query',
     flags: flags & 32767,
+    flag_qr: ((flags >> 15) & 0x1) === 1,
     opcode: (flags >> 11) & 0xf,
-    flag_auth: (flags >> 10) & 0x1,
-    flag_trunc: (flags >> 9) & 0x1,
-    flag_rd: (flags >> 8) & 0x1,
-    flag_ra: (flags >> 7) & 0x1,
-    flag_z: (flags >> 6) & 0x1,
-    flag_ad: (flags >> 5) & 0x1,
-    flag_cd: (flags >> 4) & 0x1,
+    flag_auth: ((flags >> 10) & 0x1) === 1,
+    flag_trunc: ((flags >> 9) & 0x1) === 1,
+    flag_rd: ((flags >> 8) & 0x1) === 1,
+    flag_ra: ((flags >> 7) & 0x1) === 1,
+    flag_z: ((flags >> 6) & 0x1) === 1,
+    flag_ad: ((flags >> 5) & 0x1) === 1,
+    flag_cd: ((flags >> 4) & 0x1) === 1,
     rcode: rcodes.toString(flags & 0xf),
     questions: new Array(buf.readUInt16BE(offset + 4)),
     answers: new Array(buf.readUInt16BE(offset + 6)),
diff --git a/test.js b/test.js
index a5ee614..996acad 100644
--- a/test.js
+++ b/test.js
@@ -194,13 +194,14 @@ tape('rcode', function (t) {
   var val = packet.decode(buf)
   t.ok(val.type === 'response', 'decode type')
   t.ok(val.opcode === 0, 'decode opcode')
-  t.ok(val.flag_auth === 1, 'decode flag_auth')
-  t.ok(val.flag_trunc === 0, 'decode flag_trunc')
-  t.ok(val.flag_rd === 0, 'decode flag_rd')
-  t.ok(val.flag_ra === 1, 'decode flag_ra')
-  t.ok(val.flag_z === 0, 'decode flag_z')
-  t.ok(val.flag_ad === 0, 'decode flag_ad')
-  t.ok(val.flag_cd === 0, 'decode flag_cd')
+  t.ok(val.flag_qr === true, 'decode flag_auth')
+  t.ok(val.flag_auth === true, 'decode flag_auth')
+  t.ok(val.flag_trunc === false, 'decode flag_trunc')
+  t.ok(val.flag_rd === false, 'decode flag_rd')
+  t.ok(val.flag_ra === true, 'decode flag_ra')
+  t.ok(val.flag_z === false, 'decode flag_z')
+  t.ok(val.flag_ad === false, 'decode flag_ad')
+  t.ok(val.flag_cd === false, 'decode flag_cd')
   t.ok(val.rcode === 'NOERROR', 'decode rcode')
   t.end()
 })