diff --git a/plugins/in_winevtlog/pack.c b/plugins/in_winevtlog/pack.c
index 0a03e83dbf8..d9660c6377b 100644
--- a/plugins/in_winevtlog/pack.c
+++ b/plugins/in_winevtlog/pack.c
@@ -282,7 +282,9 @@ static int pack_sid(struct winevtlog_config *ctx, PSID sid, int extract_sid)
                                    &len, &sid_type)) {
                 err = GetLastError();
                 if (err == ERROR_NONE_MAPPED) {
-                    strcpy_s(account, MAX_NAME, "NONE_MAPPED");
+                    flb_plg_debug(ctx->ins, "AccountSid is not mapped. code: %u", err);
+
+                    goto not_mapped_error;
                 }
                 else {
                     flb_plg_warn(ctx->ins, "LookupAccountSid Error %u", err);
@@ -327,12 +329,17 @@ static int pack_sid(struct winevtlog_config *ctx, PSID sid, int extract_sid)
             return ret;
         }
 
-    error:
+    not_mapped_error:
         ret = pack_wstr(ctx, wide_sid);
 
         LocalFree(wide_sid);
 
-        return -1;
+        return ret;
+
+    error:
+        LocalFree(wide_sid);
+
+        return ret;
     }
 
     return ret;