diff --git a/report-handler.go b/report-handler.go
index 6912955..7023bca 100644
--- a/report-handler.go
+++ b/report-handler.go
@@ -19,10 +19,15 @@ func handleReport(w http.ResponseWriter, r *http.Request) {
 	switch action {
 
 	case "ping":
-		_ = db.SourceUpdateLastSeenAt(src.SourceID)
-		w.WriteHeader(http.StatusOK)
+		if err = db.SourceUpdateLastSeenAt(src.SourceID); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		} else {
+			w.WriteHeader(http.StatusOK)
+		}
 
 	case "log":
+		_ = db.SourceUpdateLastSeenAt(src.SourceID)
+
 		text := r.Form.Get("text")
 		_ = db.LogInsert(Entry{
 			SourceID: src.SourceID,
@@ -32,6 +37,8 @@ func handleReport(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusOK)
 
 	case "alert":
+		_ = db.SourceUpdateLastSeenAt(src.SourceID)
+
 		text := r.Form.Get("text")
 		_ = db.LogInsert(Entry{
 			SourceID: src.SourceID,
@@ -40,5 +47,8 @@ func handleReport(w http.ResponseWriter, r *http.Request) {
 		})
 		runAlertAction(src.AlertAction, src.Name, text)
 		w.WriteHeader(http.StatusOK)
+
+	default:
+		http.Error(w, "Unknown action: "+action, http.StatusBadRequest)
 	}
 }