diff --git a/Gopkg.lock b/Gopkg.lock
index 350685269..5edb998bb 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -41,7 +41,7 @@
   branch = "master"
   name = "github.com/a8m/tree"
   packages = ["."]
-  revision = "4b871cd428eeab064e45ff2bf65054bb7eb10d6c"
+  revision = "5554ed4554293f11a726accc1ebf2bd3342742f8"
 
 [[projects]]
   branch = "master"
diff --git a/vendor/github.com/a8m/tree/csort_bsd.go b/vendor/github.com/a8m/tree/csort_bsd.go
index d2bbbcc3b..f5895a62b 100644
--- a/vendor/github.com/a8m/tree/csort_bsd.go
+++ b/vendor/github.com/a8m/tree/csort_bsd.go
@@ -8,6 +8,11 @@ import (
 )
 
 func CTimeSort(f1, f2 os.FileInfo) bool {
-	s1, s2 := f1.Sys().(*syscall.Stat_t), f2.Sys().(*syscall.Stat_t)
+	s1, ok1 := f1.Sys().(*syscall.Stat_t)
+	s2, ok2 := f2.Sys().(*syscall.Stat_t)
+	// If this type of node isn't an os node then revert to ModSort
+	if !ok1 || !ok2 {
+		return ModSort(f1, f2)
+	}
 	return s1.Ctimespec.Sec < s2.Ctimespec.Sec
 }
diff --git a/vendor/github.com/a8m/tree/csort_unix.go b/vendor/github.com/a8m/tree/csort_unix.go
index 3d769f393..6acd09224 100644
--- a/vendor/github.com/a8m/tree/csort_unix.go
+++ b/vendor/github.com/a8m/tree/csort_unix.go
@@ -8,6 +8,11 @@ import (
 )
 
 func CTimeSort(f1, f2 os.FileInfo) bool {
-	s1, s2 := f1.Sys().(*syscall.Stat_t), f2.Sys().(*syscall.Stat_t)
+	s1, ok1 := f1.Sys().(*syscall.Stat_t)
+	s2, ok2 := f2.Sys().(*syscall.Stat_t)
+	// If this type of node isn't an os node then revert to ModSort
+	if !ok1 || !ok2 {
+		return ModSort(f1, f2)
+	}
 	return s1.Ctim.Sec < s2.Ctim.Sec
 }