diff --git a/engine/src/flutter/sky/tools/skyanalyzer b/engine/src/flutter/sky/tools/skyanalyzer
index 8dbe3fe10d3..a39539c4148 100755
--- a/engine/src/flutter/sky/tools/skyanalyzer
+++ b/engine/src/flutter/sky/tools/skyanalyzer
@@ -54,7 +54,8 @@ def main():
       subprocess.check_output([
           DARTANALYZER, "--package-warnings",
           "--package-root", os.path.join(WORKBENCH, "packages"),
-          "--fatal-warnings"
+          "--fatal-warnings",
+          "--supermixin",
       ] + app_paths, stderr=subprocess.STDOUT)
     except subprocess.CalledProcessError as e:
       errors = [l for l in e.output.split('\n')