diff --git a/docs/configs/env_vars.md b/docs/configs/env_vars.md
index 391ddff2..18ee59b1 100644
--- a/docs/configs/env_vars.md
+++ b/docs/configs/env_vars.md
@@ -35,7 +35,7 @@ Overrides Repository Auto-logging
 |**CLEARML_VCS_ROOT** | Repository's Root directory    |
 |**CLEARML_VCS_WORK_DIR** | Repository's working directory |
 |**CLEARML_VCS_STATUS** | Repository status              |
-|**CLEARML_VCS_DIFF** | Script diff                    |
+|**CLEARML_VCS_DIFF** |  Base64 encoded string. Holds repo diff logged to a task. If set to an empty string, uncommitted changes are not logged. Note: Overriding CLEARML_VCS_DIFF may change the results of a task when executed remotely |
 |**CLEARML_VCS_ENTRY_POINT** | Entry point script             |
 
 ### Server Connection