diff --git a/errors.go b/errors.go
index 316234f..3fd3ba4 100644
--- a/errors.go
+++ b/errors.go
@@ -23,6 +23,7 @@ import (
 const (
 	// Errors corresponding to kernel error numbers. These may be treated
 	// specially by fuseops.Op.Respond methods.
+	EEXIST    = bazilfuse.EEXIST
 	EINVAL    = bazilfuse.Errno(syscall.EINVAL)
 	EIO       = bazilfuse.EIO
 	ENOENT    = bazilfuse.ENOENT
diff --git a/samples/memfs/memfs.go b/samples/memfs/memfs.go
index 1aa4079..beacc4c 100644
--- a/samples/memfs/memfs.go
+++ b/samples/memfs/memfs.go
@@ -345,7 +345,7 @@ func (fs *memFS) CreateFile(
 	// duplicate.
 	_, exists := parent.LookUpChild(op.Name)
 	if exists {
-		err = fmt.Errorf("Name %q already exists in parent", op.Name)
+		err = fuse.EEXIST
 		return
 	}