diff --git a/core/android_soong_config_vars.mk b/core/android_soong_config_vars.mk
index 74558f56b..39429d026 100644
--- a/core/android_soong_config_vars.mk
+++ b/core/android_soong_config_vars.mk
@@ -60,3 +60,7 @@ endif
 ifdef APEX_BUILD_FOR_PRE_S_DEVICES
 $(call add_soong_config_var_value,ANDROID,library_linking_strategy,prefer_static)
 endif
+
+ifdef MODULE_BUILD_FROM_SOURCE
+$(call add_soong_config_var_value,ANDROID,module_build_from_source,true)
+endif