diff --git a/src/main/java/com/google/devtools/build/lib/analysis/config/CoreOptions.java b/src/main/java/com/google/devtools/build/lib/analysis/config/CoreOptions.java
index a7fbb8b..6df4ac7 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/config/CoreOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/config/CoreOptions.java
@@ -435,7 +435,7 @@
 
   @Option(
       name = "incompatible_always_include_files_in_data",
-      defaultValue = "false",
+      defaultValue = "true",
       documentationCategory = OptionDocumentationCategory.OUTPUT_SELECTION,
       effectTags = {OptionEffectTag.AFFECTS_OUTPUTS},
       metadataTags = {OptionMetadataTag.INCOMPATIBLE_CHANGE},