diff --git a/build/sdk.atree b/build/sdk.atree
index 124fc8855..32725fd10 100644
--- a/build/sdk.atree
+++ b/build/sdk.atree
@@ -184,6 +184,9 @@ docs/features.txt                         platforms/${PLATFORM_NAME}/data/featur
 # fonts for layoutlib.
 ${FONT_OUT}                       platforms/${PLATFORM_NAME}/data/fonts
 
+# timezone data for layoutlib
+bionic/libc/zoneinfo/tzdata       platforms/${PLATFORM_NAME}/data/tzdata
+
 # NOTICE files are copied by build/core/Makefile from sdk.git
 development/sdk/sdk_files_NOTICE.txt      platforms/${PLATFORM_NAME}/templates/NOTICE.txt
 development/sdk/sdk_files_NOTICE.txt      platforms/${PLATFORM_NAME}/data/NOTICE.txt