diff --git a/web/.env.example b/web/.env.example
index c06a4fba87..f2f25454cb 100644
--- a/web/.env.example
+++ b/web/.env.example
@@ -47,6 +47,8 @@ NEXT_PUBLIC_TOP_K_MAX_VALUE=10
 
 # The maximum number of tokens for segmentation
 NEXT_PUBLIC_INDEXING_MAX_SEGMENTATION_TOKENS_LENGTH=4000
+# Used by web/docker/entrypoint.sh to overwrite/export NEXT_PUBLIC_INDEXING_MAX_SEGMENTATION_TOKENS_LENGTH at container startup (Docker only)
+INDEXING_MAX_SEGMENTATION_TOKENS_LENGTH=4000
 
 # Maximum loop count in the workflow
 NEXT_PUBLIC_LOOP_NODE_MAX_COUNT=100