diff --git a/cayley.go b/cayley.go
index eae0ff9..41b3244 100644
--- a/cayley.go
+++ b/cayley.go
@@ -33,6 +33,7 @@ import (
 	"github.com/google/cayley/db"
 	"github.com/google/cayley/graph"
 	"github.com/google/cayley/http"
+	"github.com/google/cayley/internal"
 	"github.com/google/cayley/quad"
 	"github.com/google/cayley/quad/cquads"
 	"github.com/google/cayley/quad/nquads"
@@ -286,7 +287,7 @@ func decompressAndLoad(qw graph.QuadWriter, cfg *config.Config, path, typ string
 		r = res.Body
 	}
 
-	r, err = quad.Decompressor(r)
+	r, err = internal.Decompressor(r)
 	if err != nil {
 		if err == io.EOF {
 			return nil
diff --git a/cayley_test.go b/cayley_test.go
index 18cae90..f488a3c 100644
--- a/cayley_test.go
+++ b/cayley_test.go
@@ -32,6 +32,7 @@ import (
 	"github.com/google/cayley/config"
 	"github.com/google/cayley/db"
 	"github.com/google/cayley/graph"
+	"github.com/google/cayley/internal"
 	"github.com/google/cayley/quad"
 	"github.com/google/cayley/query/gremlin"
 )
@@ -705,7 +706,7 @@ var testDecompressor = []struct {
 
 func TestDecompressor(t *testing.T) {
 	for _, test := range testDecompressor {
-		r, err := decompressor(test.input)
+		r, err := internal.Decompressor(test.input)
 		if err != test.err {
 			t.Fatalf("Unexpected error for %s, got:%v expect:%v", test.message, err, test.err)
 		}
diff --git a/http/write.go b/http/write.go
index 0c71f13..de2c24b 100644
--- a/http/write.go
+++ b/http/write.go
@@ -25,6 +25,7 @@ import (
 	"github.com/barakmich/glog"
 	"github.com/julienschmidt/httprouter"
 
+	"github.com/google/cayley/internal"
 	"github.com/google/cayley/quad"
 	"github.com/google/cayley/quad/cquads"
 )
@@ -82,7 +83,7 @@ func (api *API) ServeV1WriteNQuad(w http.ResponseWriter, r *http.Request, params
 		blockSize = int64(api.config.LoadSize)
 	}
 
-	quadReader, err := quad.Decompressor(formFile)
+	quadReader, err := internal.Decompressor(formFile)
 	// TODO(kortschak) Make this configurable from the web UI.
 	dec := cquads.NewDecoder(quadReader)
 
diff --git a/quad/decompressor.go b/internal/decompressor.go
similarity index 98%
rename from quad/decompressor.go
rename to internal/decompressor.go
index 35ee714..1d3ab00 100644
--- a/quad/decompressor.go
+++ b/internal/decompressor.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package quad
+package internal
 
 import (
 	"bufio"