diff --git a/src/plugins/debugger/breakhandler.cpp b/src/plugins/debugger/breakhandler.cpp
index 3a68ad24ca3..e2f42011c31 100644
--- a/src/plugins/debugger/breakhandler.cpp
+++ b/src/plugins/debugger/breakhandler.cpp
@@ -671,6 +671,7 @@ void BreakHandler::saveSessionData()
 void BreakHandler::initMasterList()
 {
     if (m_bp) {
+        qDeleteAll(*m_bp);
         delete m_bp;
     }
     m_masterList = true;