diff --git a/libcontainer/generic_error.go b/libcontainer/generic_error.go
index 6e7de2fe..d185ebd8 100644
--- a/libcontainer/generic_error.go
+++ b/libcontainer/generic_error.go
@@ -80,7 +80,7 @@ func (e *genericError) Error() string {
 		return e.Message
 	}
 	frame := e.Stack.Frames[0]
-	return fmt.Sprintf("%s:%d: %s caused %q", frame.File, frame.Line, e.Cause, e.Message)
+	return fmt.Sprintf("%s:%d: %s caused: %s", frame.File, frame.Line, e.Cause, e.Message)
 }
 
 func (e *genericError) Code() ErrorCode {
diff --git a/libcontainer/rootfs_linux.go b/libcontainer/rootfs_linux.go
index df2fa03d..62fad7ed 100644
--- a/libcontainer/rootfs_linux.go
+++ b/libcontainer/rootfs_linux.go
@@ -55,7 +55,7 @@ func prepareRootfs(pipe io.ReadWriter, iConfig *initConfig) (err error) {
 			}
 		}
 		if err := mountToRootfs(m, config.Rootfs, config.MountLabel, hasCgroupns); err != nil {
-			return newSystemErrorWithCausef(err, "mounting %q to rootfs %q at %q", m.Source, config.Rootfs, m.Destination)
+			return newSystemErrorWithCausef(err, "mounting %q to rootfs at %q", m.Source, m.Destination)
 		}
 
 		for _, postcmd := range m.PostmountCmds {