diff --git a/chelpers.go b/chelpers.go
index 1560fdb..49efd1d 100644
--- a/chelpers.go
+++ b/chelpers.go
@@ -1,6 +1,5 @@
 package powershell
 
-// "bitbucket.org/creachadair/shell"
 import (
 	"unsafe"
 
diff --git a/hostcommand.go b/hostcommand.go
index 89f7ccb..37de9c0 100644
--- a/hostcommand.go
+++ b/hostcommand.go
@@ -1,7 +1,5 @@
 package powershell
 
-// "bitbucket.org/creachadair/shell"
-
 /*
 
 #cgo CFLAGS: -I.
diff --git a/runspace.go b/runspace.go
index fcdd782..9647e8e 100644
--- a/runspace.go
+++ b/runspace.go
@@ -1,7 +1,5 @@
 package powershell
 
-// "bitbucket.org/creachadair/shell"
-
 /*
 
 #cgo CFLAGS: -I.
diff --git a/tests/a_test.go b/tests/a_test.go
index 20dccfe..e350959 100644
--- a/tests/a_test.go
+++ b/tests/a_test.go
@@ -1,6 +1,5 @@
 package tests
 
-// "bitbucket.org/creachadair/shell"
 import (
 	"fmt"
 	powershell "github.com/KnicKnic/go-powershell"