diff --git a/codec/mjpeg/jpeg.go b/codec/mjpeg/jpeg.go
index 41f9e529..08b49e58 100644
--- a/codec/mjpeg/jpeg.go
+++ b/codec/mjpeg/jpeg.go
@@ -57,6 +57,7 @@ var (
 	errReservedQ = errors.New("q value is reserved")
 )
 
+// Slices used in the creation of huffman tables.
 var (
 	bitsDCLum = []byte{0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0}
 	bitsDCChr = []byte{0, 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0}
@@ -110,30 +111,30 @@ var (
 		0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
 		0xf9, 0xfa,
 	}
-
-	defaultQuantisers = []byte{
-		// Luma table.
-		16, 11, 12, 14, 12, 10, 16, 14,
-		13, 14, 18, 17, 16, 19, 24, 40,
-		26, 24, 22, 22, 24, 49, 35, 37,
-		29, 40, 58, 51, 61, 60, 57, 51,
-		56, 55, 64, 72, 92, 78, 64, 68,
-		87, 69, 55, 56, 80, 109, 81, 87,
-		95, 98, 103, 104, 103, 62, 77, 113,
-		121, 112, 100, 120, 92, 101, 103, 99,
-
-		/* chroma table */
-		17, 18, 18, 24, 21, 24, 47, 26,
-		26, 47, 99, 66, 56, 66, 99, 99,
-		99, 99, 99, 99, 99, 99, 99, 99,
-		99, 99, 99, 99, 99, 99, 99, 99,
-		99, 99, 99, 99, 99, 99, 99, 99,
-		99, 99, 99, 99, 99, 99, 99, 99,
-		99, 99, 99, 99, 99, 99, 99, 99,
-		99, 99, 99, 99, 99, 99, 99, 99,
-	}
 )
 
+var defaultQuantisers = []byte{
+	// Luma table.
+	16, 11, 12, 14, 12, 10, 16, 14,
+	13, 14, 18, 17, 16, 19, 24, 40,
+	26, 24, 22, 22, 24, 49, 35, 37,
+	29, 40, 58, 51, 61, 60, 57, 51,
+	56, 55, 64, 72, 92, 78, 64, 68,
+	87, 69, 55, 56, 80, 109, 81, 87,
+	95, 98, 103, 104, 103, 62, 77, 113,
+	121, 112, 100, 120, 92, 101, 103, 99,
+
+	/* chroma table */
+	17, 18, 18, 24, 21, 24, 47, 26,
+	26, 47, 99, 66, 56, 66, 99, 99,
+	99, 99, 99, 99, 99, 99, 99, 99,
+	99, 99, 99, 99, 99, 99, 99, 99,
+	99, 99, 99, 99, 99, 99, 99, 99,
+	99, 99, 99, 99, 99, 99, 99, 99,
+	99, 99, 99, 99, 99, 99, 99, 99,
+	99, 99, 99, 99, 99, 99, 99, 99,
+}
+
 // Ctx describes a RTP/JPEG parsing context that will keep track of the current
 // JPEG (held by p), and the state of the quantization tables.
 type Ctx struct {