diff --git a/packages/debug/src/browser/debug-session.tsx b/packages/debug/src/browser/debug-session.tsx
index d1494eac6e440..5fefa1bfd3ea2 100644
--- a/packages/debug/src/browser/debug-session.tsx
+++ b/packages/debug/src/browser/debug-session.tsx
@@ -377,11 +377,12 @@ export class DebugSession implements CompositeTreeElement {
             }
             this.breakpoints.setExceptionBreakpoints(exceptionBreakpoints);
         }
+        // mark as initialized, so updated breakpoints are shown in editor
+        this.initialized = true;
         await this.updateBreakpoints({ sourceModified: false });
         if (this.capabilities.supportsConfigurationDoneRequest) {
             await this.sendRequest('configurationDone', {});
         }
-        this.initialized = true;
         await this.updateThreads(undefined);
     }