diff --git a/internal/pdf/service.go b/internal/pdf/service.go
index d05dc6d..3df0f01 100644
--- a/internal/pdf/service.go
+++ b/internal/pdf/service.go
@@ -119,7 +119,7 @@ func (ps PdfService) BuildReport(r *booking.Report, period string, month, year i
 
 	payload, err := json.Marshal(data)
 	if err != nil {
-		log.Warnf("Error marshalling JSON:", err)
+		log.Warnf("Error marshalling JSON: %s", err)
 		return err
 	}
 
@@ -129,7 +129,7 @@ func (ps PdfService) BuildReport(r *booking.Report, period string, month, year i
 func (ps PdfService) sendData(payload []byte) error {
 	req, err := http.NewRequest("POST", ps.url, bytes.NewBuffer(payload))
 	if err != nil {
-		log.Warnf("Error creating request:", err)
+		log.Warnf("Error creating request: %s", err)
 		return err
 	}
 
@@ -139,7 +139,7 @@ func (ps PdfService) sendData(payload []byte) error {
 	client := &http.Client{}
 	resp, err := client.Do(req)
 	if err != nil {
-		log.Warnf("Error sending request:", err)
+		log.Warnf("Error sending request: %s", err)
 		return err
 	}
 	defer resp.Body.Close()
diff --git a/internal/server/handle_bookings.go b/internal/server/handle_bookings.go
index 9cea81b..0a1d917 100644
--- a/internal/server/handle_bookings.go
+++ b/internal/server/handle_bookings.go
@@ -255,7 +255,7 @@ func handleCreateItem(bs *booking.Service, cs *calendar.Service, hc *config.Host
 			fmt.Sprintf("Reservation: %s\n %d voyageur(s)\n", b.Name, b.CustomerNumber),
 			b.From, b.To,
 		); err != nil {
-			log.Printf("could not create event %w", err)
+			log.Warnf("could not create event: %s", err)
 			captureError(c, err)
 		}