diff --git a/AndroidXCI/lib/src/main/kotlin/dev/androidx/ci/testRunner/TestRunnerService.kt b/AndroidXCI/lib/src/main/kotlin/dev/androidx/ci/testRunner/TestRunnerService.kt
index fa93e78..dda92aa 100644
--- a/AndroidXCI/lib/src/main/kotlin/dev/androidx/ci/testRunner/TestRunnerService.kt
+++ b/AndroidXCI/lib/src/main/kotlin/dev/androidx/ci/testRunner/TestRunnerService.kt
@@ -357,6 +357,7 @@ interface TestRunnerService {
             const val LOGCAT = "logcat"
             const val PNG = "png"
             const val TEXTPROTO = "textproto"
+            const val PROTOBINARY = "pb"
         }
     }