diff --git a/engine/src/flutter/.ci.yaml b/engine/src/flutter/.ci.yaml
index c770736d3b4..e84001fada5 100644
--- a/engine/src/flutter/.ci.yaml
+++ b/engine/src/flutter/.ci.yaml
@@ -368,7 +368,6 @@ targets:
       - os=Mac-13
 
   - name: Linux mac_clangd
-    bringup: true
     recipe: engine_v2/engine_v2
     # Avoid using a Mac orchestrator to save ~5 minutes of Mac host time.
     drone_dimensions:
diff --git a/engine/src/flutter/ci/builders/mac_unopt_debug_no_rbe.json b/engine/src/flutter/ci/builders/mac_unopt_debug_no_rbe.json
index af2acdd1950..9d319744571 100644
--- a/engine/src/flutter/ci/builders/mac_unopt_debug_no_rbe.json
+++ b/engine/src/flutter/ci/builders/mac_unopt_debug_no_rbe.json
@@ -32,6 +32,11 @@
         "config": "mac_unopt_debug_no_rbe",
         "targets": ["flutter/tools/font_subset"]
       },
+      "properties": {
+          "$flutter/osx_sdk": {
+              "sdk_version": "15a240d"
+          }
+      },
       "tests": [
         {
           "language": "dart",