diff --git a/extensions/qa-matrix/src/runners/contract/scenario-catalog.ts b/extensions/qa-matrix/src/runners/contract/scenario-catalog.ts
index 008d55075d3..f7f4a59a963 100644
--- a/extensions/qa-matrix/src/runners/contract/scenario-catalog.ts
+++ b/extensions/qa-matrix/src/runners/contract/scenario-catalog.ts
@@ -1230,6 +1230,7 @@ const MATRIX_QA_MEDIA_PROFILE_SCENARIO_IDS = [
 ] satisfies MatrixQaScenarioId[];
 
 const MATRIX_QA_EXPLICIT_ONLY_SCENARIO_IDS = new Set<MatrixQaScenarioId>([
+  "matrix-room-block-streaming",
   "matrix-subagent-thread-spawn",
 ]);
 
diff --git a/extensions/qa-matrix/src/runners/contract/scenarios.test.ts b/extensions/qa-matrix/src/runners/contract/scenarios.test.ts
index 3aec59ebba5..bded7cb4572 100644
--- a/extensions/qa-matrix/src/runners/contract/scenarios.test.ts
+++ b/extensions/qa-matrix/src/runners/contract/scenarios.test.ts
@@ -315,7 +315,6 @@ describe("matrix live qa scenarios", () => {
       "matrix-room-tool-progress-preview-opt-out",
       "matrix-room-tool-progress-error",
       "matrix-room-tool-progress-mention-safety",
-      "matrix-room-block-streaming",
       "matrix-room-image-understanding-attachment",
       "matrix-room-generated-image-delivery",
       "matrix-media-type-coverage",