diff --git a/cli/args/config_file.rs b/cli/args/config_file.rs
index 199f84709c..2320a0b0df 100644
--- a/cli/args/config_file.rs
+++ b/cli/args/config_file.rs
@@ -524,8 +524,9 @@ impl ConfigFile {
       if checked.insert(ancestor.to_path_buf()) {
         for config_filename in CONFIG_FILE_NAMES {
           let f = ancestor.join(config_filename);
-          match ConfigFile::read(f) {
+          match ConfigFile::read(&f) {
             Ok(cf) => {
+              log::debug!("Config file found at '{}'", f.display());
               return Ok(Some(cf));
             }
             Err(e) => {
diff --git a/cli/tests/integration/run_tests.rs b/cli/tests/integration/run_tests.rs
index f12282b9fc..4c1f6363a1 100644
--- a/cli/tests/integration/run_tests.rs
+++ b/cli/tests/integration/run_tests.rs
@@ -2601,6 +2601,11 @@ itest!(config_auto_discovered_for_local_script {
   output_str: Some("ok\n"),
 });
 
+itest!(config_auto_discovered_for_local_script_log {
+  args: "run -L debug run/with_config/frontend_work.ts",
+  output: "run/with_config/auto_discovery_log.out",
+});
+
 itest!(no_config_auto_discovery_for_local_script {
   args: "run --quiet --no-config --check run/with_config/frontend_work.ts",
   output: "run/with_config/no_auto_discovery.out",
diff --git a/cli/tests/testdata/fmt/fmt_with_config_default.out b/cli/tests/testdata/fmt/fmt_with_config_default.out
new file mode 100644
index 0000000000..faad9352bb
--- /dev/null
+++ b/cli/tests/testdata/fmt/fmt_with_config_default.out
@@ -0,0 +1,2 @@
+Config file found at '[WILDCARD]deno.jsonc'
+Checked 2 files
diff --git a/cli/tests/testdata/run/with_config/auto_discovery_log.out b/cli/tests/testdata/run/with_config/auto_discovery_log.out
new file mode 100644
index 0000000000..ab5c0f6892
--- /dev/null
+++ b/cli/tests/testdata/run/with_config/auto_discovery_log.out
@@ -0,0 +1,11 @@
+DEBUG RS - deno::args::config_file:529 - Config file found at '[WILDCARD]deno.jsonc'
+DEBUG RS - deno::js:33 - Deno isolate init with snapshots.
+DEBUG JS - args []
+DEBUG RS - deno::worker:66 - main_module [WILDCARD]
+DEBUG RS - deno::proc_state:327 - Preparing module load.
+DEBUG RS - deno::cache::parsed_source:156 - Loading cached module analyzer.
+DEBUG RS - deno::proc_state:406 - Creating module graph.
+DEBUG RS - deno::file_fetcher:551 - FileFetcher::fetch() - specifier: [WILDCARD]
+DEBUG RS - deno_runtime::permissions:55 - ⚠️️  Granted read access to "[WILDCARD]"
+DEBUG RS - deno::proc_state:498 - Prepared module load.
+ok