diff --git a/veza-backend-api/internal/logging/logger.go b/veza-backend-api/internal/logging/logger.go
index 1c156a75f..79ea87a8e 100644
--- a/veza-backend-api/internal/logging/logger.go
+++ b/veza-backend-api/internal/logging/logger.go
@@ -21,9 +21,10 @@ type Logger struct {
 func NewLogger(env, logLevel string) (*Logger, error) {
 	var config zap.Config
 
-	if env == "production" {
+	// FIX #25: Standardiser sur JSON en production/staging, console en développement
+	if env == "production" || env == "staging" {
 		config = zap.NewProductionConfig()
-		// En production, utiliser JSON structuré
+		// En production/staging, utiliser JSON structuré pour faciliter l'agrégation
 		config.Encoding = "json"
 		config.EncoderConfig = zap.NewProductionEncoderConfig()
 		config.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
@@ -67,9 +68,10 @@ func NewLogger(env, logLevel string) (*Logger, error) {
 func NewLoggerWithRotation(env, logFile, logLevel string) (*Logger, error) {
 	var config zap.Config
 
-	if env == "production" {
+	// FIX #25: Standardiser sur JSON en production/staging, console en développement
+	if env == "production" || env == "staging" {
 		config = zap.NewProductionConfig()
-		// En production, utiliser JSON structuré
+		// En production/staging, utiliser JSON structuré pour faciliter l'agrégation
 		config.Encoding = "json"
 		config.EncoderConfig = zap.NewProductionEncoderConfig()
 		config.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
diff --git a/veza-backend-api/internal/logging/logger_aggregation.go b/veza-backend-api/internal/logging/logger_aggregation.go
index d5f30896c..115a26254 100644
--- a/veza-backend-api/internal/logging/logger_aggregation.go
+++ b/veza-backend-api/internal/logging/logger_aggregation.go
@@ -314,7 +314,8 @@ func (aw *aggregationWriter) Close() error {
 func NewLoggerWithAggregation(env, logLevel string, aggConfig *AggregationConfig) (*Logger, error) {
 	var config zap.Config
 
-	if env == "production" {
+	// FIX #25: Standardiser sur JSON en production/staging, console en développement
+	if env == "production" || env == "staging" {
 		config = zap.NewProductionConfig()
 		config.Encoding = "json"
 		config.EncoderConfig = zap.NewProductionEncoderConfig()