diff --git a/context.go b/context.go
index f85eec5..2e7879c 100644
--- a/context.go
+++ b/context.go
@@ -87,10 +87,6 @@ func (ctx *context) DispatchFile(f File) {
 	ctx.output <- f.(*file)
 }
 
-func (ctx *context) ReferenceFile(path string) {
-	ctx.gs.referenceFile(path)
-}
-
 func (ctx *context) SrcDir() string {
 	return ctx.gs.srcDir
 }
diff --git a/core.go b/core.go
index 198986c..9288239 100644
--- a/core.go
+++ b/core.go
@@ -31,9 +31,7 @@ import (
 type goldsmith struct {
 	srcDir, dstDir string
 	contexts       []*context
-
-	refs   map[string]bool
-	refMtx sync.Mutex
+	refs           map[string]bool
 
 	errors   []error
 	errorMtx sync.Mutex
@@ -90,29 +88,21 @@ func (gs *goldsmith) cleanupFiles() {
 }
 
 func (gs *goldsmith) exportFile(f *file) error {
-	absPath := filepath.Join(gs.dstDir, f.path)
-	if err := f.export(absPath); err != nil {
+	if err := f.export(gs.dstDir); err != nil {
 		return err
 	}
 
-	gs.referenceFile(f.path)
-	return nil
-}
-
-func (gs *goldsmith) referenceFile(path string) {
-	gs.refMtx.Lock()
-	defer gs.refMtx.Unlock()
-
-	path = cleanPath(path)
-
+	pathSeg := cleanPath(f.path)
 	for {
-		gs.refs[path] = true
-		if path == "." {
+		gs.refs[pathSeg] = true
+		if pathSeg == "." {
 			break
 		}
 
-		path = filepath.Dir(path)
+		pathSeg = filepath.Dir(pathSeg)
 	}
+
+	return nil
 }
 
 func (gs *goldsmith) fault(f *file, err error) {
diff --git a/file.go b/file.go
index d7af136..b1984ab 100644
--- a/file.go
+++ b/file.go
@@ -28,6 +28,7 @@ import (
 	"io/ioutil"
 	"os"
 	"path"
+	"path/filepath"
 )
 
 type file struct {
@@ -38,7 +39,8 @@ type file struct {
 	asset  string
 }
 
-func (f *file) export(dstPath string) error {
+func (f *file) export(dstDir string) error {
+	dstPath := filepath.Join(dstDir, f.path)
 	if len(f.asset) > 0 && fileCached(f.asset, dstPath) {
 		return nil
 	}
diff --git a/goldsmith.go b/goldsmith.go
index 7d702c2..7d5d927 100644
--- a/goldsmith.go
+++ b/goldsmith.go
@@ -68,7 +68,6 @@ func NewFileFromAsset(path, asset string) File {
 
 type Context interface {
 	DispatchFile(f File)
-	ReferenceFile(path string)
 
 	SrcDir() string
 	DstDir() string