diff --git a/indexing_options.go b/indexing_options.go
index 4e92024..ff27523 100644
--- a/indexing_options.go
+++ b/indexing_options.go
@@ -14,7 +14,7 @@
 
 package index
 
-type FieldIndexingOptions int
+type FieldIndexingOptions uint64
 
 const (
 	IndexField FieldIndexingOptions = 1 << iota
@@ -22,6 +22,7 @@ const (
 	IncludeTermVectors
 	DocValues
 	SkipFreqNorm
+	GPU
 )
 
 const (
@@ -59,6 +60,10 @@ func (o FieldIndexingOptions) SkipFreqNorm() bool {
 	return o&SkipFreqNorm != 0
 }
 
+func (o FieldIndexingOptions) UseGPU() bool {
+	return o&GPU != 0
+}
+
 func (o FieldIndexingOptions) String() string {
 	rv := ""
 	if o.IsIndexed() {
@@ -88,5 +93,11 @@ func (o FieldIndexingOptions) String() string {
 		}
 		rv += "FN"
 	}
+	if o.UseGPU() {
+		if rv != "" {
+			rv += ", "
+		}
+		rv += "GPU"
+	}
 	return rv
 }
diff --git a/vector.go b/vector.go
index 1057cf9..97b5146 100644
--- a/vector.go
+++ b/vector.go
@@ -18,6 +18,9 @@
 package index
 
 type VectorField interface {
+	// Name of the vector field
+	Name() string
+	// The vector data
 	Vector() []float32
 	// Dimensionality of the vector
 	Dims() int