diff --git a/src/plugins/debugger/dap/dapdebugger.cpp b/src/plugins/debugger/dap/dapdebugger.cpp
index 7ceaaa505..9cd972af2 100644
--- a/src/plugins/debugger/dap/dapdebugger.cpp
+++ b/src/plugins/debugger/dap/dapdebugger.cpp
@@ -801,6 +801,8 @@ void DAPDebugger::handleEvents(const dpf::Event &event)
     } else if (event.data() == editor.breakpointAdded.name) {
         QString filePath = event.property(editor.breakpointAdded.pKeys[0]).toString();
         int line = event.property(editor.breakpointAdded.pKeys[1]).toInt();
+        if (d->bps.contains(filePath) && d->bps.values(filePath).contains(line))
+            return;
         d->bps.insert(filePath, line);
         addBreakpoint(filePath, line);
     } else if (event.data() == editor.breakpointRemoved.name) {
diff --git a/src/plugins/debugger/interface/breakpointmodel.cpp b/src/plugins/debugger/interface/breakpointmodel.cpp
index c9b81b486..f1bde1bef 100644
--- a/src/plugins/debugger/interface/breakpointmodel.cpp
+++ b/src/plugins/debugger/interface/breakpointmodel.cpp
@@ -33,13 +33,12 @@ void BreakpointModel::setBreakpoints(const Internal::Breakpoints &breakpoints, b
 
 void BreakpointModel::insertBreakpoint(const Internal::Breakpoint &breakpoint)
 {
-    beginResetModel();
     auto it = bps.begin();
     for (; it != bps.end(); ++it) {
-        if (it->breakpoint() == breakpoint) {
+        if (it->breakpoint() == breakpoint)
             return;
-        }
     }
+    beginResetModel();
     contentsValid = true;
     bps.push_back(BreakpointItem(breakpoint));
     endResetModel();