diff --git a/VolumeManager.cpp b/VolumeManager.cpp
index adb4a5c..0bb87a4 100644
--- a/VolumeManager.cpp
+++ b/VolumeManager.cpp
@@ -487,6 +487,9 @@
         case VoldNativeService::REMOUNT_MODE_FULL:
             mode = "full";
             break;
+        case VoldNativeService::REMOUNT_MODE_PASS_THROUGH:
+            mode = "pass_through";
+            break;
         default:
             PLOG(ERROR) << "Unknown mode " << std::to_string(mountMode);
             return -1;