diff --git a/tools/aapt2/SdkConstants.h b/tools/aapt2/SdkConstants.h
index 40bcef7..e47704ea 100644
--- a/tools/aapt2/SdkConstants.h
+++ b/tools/aapt2/SdkConstants.h
@@ -59,6 +59,7 @@
   SDK_S = 31,
   SDK_S_V2 = 32,
   SDK_TIRAMISU = 33,
+  SDK_UPSIDE_DOWN_CAKE = 34,
   SDK_CUR_DEVELOPMENT = 10000,
 };