diff --git a/src/kupdatelaunchenvironmentjob.cpp b/src/kupdatelaunchenvironmentjob.cpp
index 981666e51bf6d4e40f349d60e7b78770239fb18d..6af300301dab70e2273f672e74f6629aaeb89f51 100644
--- a/src/kupdatelaunchenvironmentjob.cpp
+++ b/src/kupdatelaunchenvironmentjob.cpp
@@ -23,6 +23,7 @@ public:
     void monitorReply(const QDBusPendingReply<> &reply);
 
     static bool isPosixName(const QString &name);
+    static bool isProcessConfinementName(const QString &name);
     static bool isSystemdApprovedValue(const QString &value);
