diff --git a/internal/cli/common/manager.go b/internal/cli/common/manager.go
index aaaceba6f9..eebf4901fe 100644
--- a/internal/cli/common/manager.go
+++ b/internal/cli/common/manager.go
@@ -76,7 +76,11 @@ func CreateManager(
 		sanitConf := docs.NewSanitiseConfig(bundle.GlobalEnvironment)
 		sanitConf.RemoveTypeField = true
 		sanitConf.ScrubSecrets = true
-		err = config.Spec().SanitiseYAML(&sanitNode, sanitConf)
+		sanitSpec := config.Spec()
+		if streamsMode {
+			sanitSpec = config.SpecWithoutStream()
+		}
+		err = sanitSpec.SanitiseYAML(&sanitNode, sanitConf)
 	}
 	if err != nil {
 		err = fmt.Errorf("failed to generate sanitised config: %w", err)
diff --git a/internal/config/reader.go b/internal/config/reader.go
index f7f12a8270..ec47ef47b4 100644
--- a/internal/config/reader.go
+++ b/internal/config/reader.go
@@ -311,7 +311,7 @@ func (r *Reader) readMain(mainPath string) (conf Type, lints []string, err error
 	if r.streamsMode {
 		// Spec is limited to just non-stream fields when in streams mode (no
 		// input, output, etc)
-		confSpec = r.specStreamOnly
+		confSpec = r.specObservability
 	}
 	if err = applyOverrides(confSpec, rawNode, r.overrides...); err != nil {
 		return
diff --git a/internal/config/stream_reader_test.go b/internal/config/stream_reader_test.go
index 0e8148764f..0928ba6c39 100644
--- a/internal/config/stream_reader_test.go
+++ b/internal/config/stream_reader_test.go
@@ -18,6 +18,12 @@ import (
 func TestStreamsLints(t *testing.T) {
 	dir := t.TempDir()
 
+	generalConfPath := filepath.Join(dir, "main.yaml")
+	require.NoError(t, os.WriteFile(generalConfPath, []byte(`
+logger:
+  level: ALL
+`), 0o644))
+
 	streamOnePath := filepath.Join(dir, "first.yaml")
 	require.NoError(t, os.WriteFile(streamOnePath, []byte(`
 input:
@@ -42,7 +48,7 @@ cache_resources:
       ttl: 13
 `), 0o644))
 
-	rdr := config.NewReader("", nil, config.OptSetStreamPaths(streamOnePath, streamTwoPath))
+	rdr := config.NewReader(generalConfPath, nil, config.OptSetStreamPaths(streamOnePath, streamTwoPath))
 
 	_, lints, err := rdr.Read()
 	require.NoError(t, err)