diff --git a/src/sm.cpp b/src/sm.cpp
index 9704ac7329..0af896cb48 100644
--- a/src/sm.cpp
+++ b/src/sm.cpp
@@ -117,15 +117,15 @@ void SessionManager::storeSession(const QString &sessionName, SMSavePhase phase)
         // it would be much simpler to save these values to the config file,
         // but both Qt and KDE treat phase1 and phase2 separately,
         // which results in different sessionkey and different config file :(
-        session_active_client = active_client;
-        session_desktop = VirtualDesktopManager::self()->current();
+        m_sessionActiveClient = active_client;
+        m_sessionDesktop = VirtualDesktopManager::self()->current();
     } else if (phase == SMSavePhase2) {
         cg.writeEntry("count", count);
-        cg.writeEntry("active", session_active_client);
-        cg.writeEntry("desktop", session_desktop);
+        cg.writeEntry("active", m_sessionActiveClient);
+        cg.writeEntry("desktop", m_sessionDesktop);
     } else { // SMSavePhase2Full
         cg.writeEntry("count", count);
-        cg.writeEntry("active", session_active_client);
+        cg.writeEntry("active", m_sessionActiveClient);
         cg.writeEntry("desktop", VirtualDesktopManager::self()->current());
     }
     config->sync(); // it previously did some "revert to defaults" stuff for phase1 I think
diff --git a/src/sm.h b/src/sm.h
index e2c5adb61c..1dbb95d1c3 100644
--- a/src/sm.h
+++ b/src/sm.h
@@ -70,8 +70,8 @@ private:
 
     SessionState m_sessionState = SessionState::Normal;
 
-    int session_active_client;
-    int session_desktop;
+    int m_sessionActiveClient;
+    int m_sessionDesktop;
 
     QList<SessionInfo *> session;
 };