diff --git a/cli/src/command_error.rs b/cli/src/command_error.rs
index 2ee53bed67..625ec7d1a7 100644
--- a/cli/src/command_error.rs
+++ b/cli/src/command_error.rs
@@ -327,7 +327,9 @@ impl From<SnapshotError> for CommandError {
   - Run `jj config set --repo snapshot.max-new-file-size {}`
     This will increase the maximum file size allowed for new files, in this repository only.
   - Run `jj --config-toml 'snapshot.max-new-file-size={}' st`
-    This will increase the maximum file size allowed for new files, for this command only.",
+    This will increase the maximum file size allowed for new files, for this command only.
+  - Run the command with `--ignore-working-copy`
+    This will ignore changes to the working copy that have not been previously snapshotted.",
                     size.0, size.0
                 ))
             }
diff --git a/cli/tests/test_working_copy.rs b/cli/tests/test_working_copy.rs
index 55a859ca99..a2144825de 100644
--- a/cli/tests/test_working_copy.rs
+++ b/cli/tests/test_working_copy.rs
@@ -34,6 +34,8 @@ fn test_snapshot_large_file() {
         This will increase the maximum file size allowed for new files, in this repository only.
       - Run `jj --config-toml 'snapshot.max-new-file-size=13' st`
         This will increase the maximum file size allowed for new files, for this command only.
+      - Run the command with `--ignore-working-copy`
+        This will ignore changes to the working copy that have not been previously snapshotted.
     "###);
 
     // test with a larger file using 'KB' human-readable syntax
@@ -50,5 +52,7 @@ fn test_snapshot_large_file() {
         This will increase the maximum file size allowed for new files, in this repository only.
       - Run `jj --config-toml 'snapshot.max-new-file-size=11264' st`
         This will increase the maximum file size allowed for new files, for this command only.
+      - Run the command with `--ignore-working-copy`
+        This will ignore changes to the working copy that have not been previously snapshotted.
     "###);
 }