diff --git a/encoding/mvt/projection.go b/encoding/mvt/projection.go
index 363303c..99aac51 100644
--- a/encoding/mvt/projection.go
+++ b/encoding/mvt/projection.go
@@ -1,11 +1,11 @@
 package mvt
 
 import (
+	"github.com/paulmach/orb/mercator"
 	"math"
 	"math/bits"
 
 	"github.com/paulmach/orb"
-	"github.com/paulmach/orb/internal/mercator"
 	"github.com/paulmach/orb/maptile"
 )
 
diff --git a/maptile/tile.go b/maptile/tile.go
index 6e7e2d6..d8a875f 100644
--- a/maptile/tile.go
+++ b/maptile/tile.go
@@ -3,12 +3,12 @@
 package maptile
 
 import (
+	"github.com/paulmach/orb/mercator"
 	"math"
 	"math/bits"
 
 	"github.com/paulmach/orb"
 	"github.com/paulmach/orb/geojson"
-	"github.com/paulmach/orb/internal/mercator"
 )
 
 // Tiles is a set of tiles, later we can add methods to this.
diff --git a/maptile/tile_test.go b/maptile/tile_test.go
index 68eb6ad..39711d9 100644
--- a/maptile/tile_test.go
+++ b/maptile/tile_test.go
@@ -2,11 +2,11 @@ package maptile
 
 import (
 	"fmt"
+	"github.com/paulmach/orb/mercator"
 	"math"
 	"testing"
 
 	"github.com/paulmach/orb"
-	"github.com/paulmach/orb/internal/mercator"
 )
 
 func TestQuadKey(t *testing.T) {
diff --git a/internal/mercator/mercator.go b/mercator/mercator.go
similarity index 100%
rename from internal/mercator/mercator.go
rename to mercator/mercator.go
diff --git a/internal/mercator/mercator_test.go b/mercator/mercator_test.go
similarity index 100%
rename from internal/mercator/mercator_test.go
rename to mercator/mercator_test.go
diff --git a/project/define_test.go b/project/define_test.go
index 9137ef4..deb9c33 100644
--- a/project/define_test.go
+++ b/project/define_test.go
@@ -1,10 +1,9 @@
 package project
 
 import (
+	"github.com/paulmach/orb/mercator"
 	"math"
 	"testing"
-
-	"github.com/paulmach/orb/internal/mercator"
 )
 
 func TestDefineDeg2Rad(t *testing.T) {
diff --git a/project/projections_test.go b/project/projections_test.go
index 947355a..1de1b84 100644
--- a/project/projections_test.go
+++ b/project/projections_test.go
@@ -1,11 +1,11 @@
 package project
 
 import (
+	"github.com/paulmach/orb/mercator"
 	"math"
 	"testing"
 
 	"github.com/paulmach/orb"
-	"github.com/paulmach/orb/internal/mercator"
 )
 
 func TestMercator(t *testing.T) {