diff --git a/exporter/qrynexporter/logs.go b/exporter/qrynexporter/logs.go
index 7791965..8a9361c 100644
--- a/exporter/qrynexporter/logs.go
+++ b/exporter/qrynexporter/logs.go
@@ -452,7 +452,7 @@ func (e *logsExporter) pushLogsData(ctx context.Context, ld plog.Logs) error {
 }
 
 func batchSamplesAndTimeSeries(ctx context.Context, db clickhouse.Conn, samples []Sample, timeSeries []TimeSerie) error {
-	isCluster := ctx.Value("cluster").(bool)
+	isCluster := ctx.Value(clusterKey).(bool)
 	samplesBatch, err := db.PrepareBatch(ctx, samplesSQL(isCluster))
 	if err != nil {
 		return err
diff --git a/extension/pyroscope/config.go b/extension/pyroscope/config.go
index e660ef2..e986f70 100644
--- a/extension/pyroscope/config.go
+++ b/extension/pyroscope/config.go
@@ -3,17 +3,17 @@ package pyroscope
 import "go.opentelemetry.io/collector/component"
 
 type Config struct {
-	ApplicationName string            `json:"application_name"`
-	Tags            map[string]string `json:"tags"`
-	ServerAddress   string            `json:"server_address"`
-	BasicAuth       BasicAuth         `json:"basic_auth"`
-	ProfileTypes    []string          `json:"profile_types"`
-	TenantID        string            `json:"tenant_id"`
+	ApplicationName string            `mapstructure:"application_name"`
+	Tags            map[string]string `mapstructure:"tags"`
+	ServerAddress   string            `mapstructure:"server_address"`
+	BasicAuth       BasicAuth         `mapstructure:"basic_auth"`
+	ProfileTypes    []string          `mapstructure:"profile_types"`
+	TenantID        string            `mapstructure:"tenant_id"`
 }
 
 type BasicAuth struct {
-	Username string `json:"username"`
-	Password string `json:"password"`
+	Username string `mapstructure:"username"`
+	Password string `mapstructure:"password"`
 }
 
 func defaultConfig() component.Config {