diff --git a/internal/v4l2/v4l2_linux.go b/internal/v4l2/v4l2_linux.go
index 4c67235d..a16779f4 100644
--- a/internal/v4l2/v4l2_linux.go
+++ b/internal/v4l2/v4l2_linux.go
@@ -58,9 +58,9 @@ func apiV4L2(w http.ResponseWriter, r *http.Request) {
 
 			if source.Name != "" {
 				sizes, _ := dev.ListSizes(fourCC)
-				for i := 0; i < len(sizes); i += 2 {
-					size := fmt.Sprintf("%dx%d", sizes[i], sizes[i+1])
-					if i > 0 {
+				for _, wh := range sizes {
+					size := fmt.Sprintf("%dx%d", wh[0], wh[1])
+					if source.Info != "" {
 						source.Info += " " + size
 					} else {
 						source.Info = size
diff --git a/pkg/v4l2/device/device.go b/pkg/v4l2/device/device.go
index 4e4d6ade..7377aef6 100644
--- a/pkg/v4l2/device/device.go
+++ b/pkg/v4l2/device/device.go
@@ -66,8 +66,8 @@ func (d *Device) ListFormats() ([]uint32, error) {
 	return items, nil
 }
 
-func (d *Device) ListSizes(pixFmt uint32) ([]uint32, error) {
-	var items []uint32
+func (d *Device) ListSizes(pixFmt uint32) ([][2]uint32, error) {
+	var items [][2]uint32
 
 	for i := uint32(0); ; i++ {
 		fs := v4l2_frmsizeenum{
@@ -85,7 +85,7 @@ func (d *Device) ListSizes(pixFmt uint32) ([]uint32, error) {
 			continue
 		}
 
-		items = append(items, fs.discrete.width, fs.discrete.height)
+		items = append(items, [2]uint32{fs.discrete.width, fs.discrete.height})
 	}
 
 	return items, nil