diff --git a/x-pack/metricbeat/module/iis/application_pool/reader.go b/x-pack/metricbeat/module/iis/application_pool/reader.go
index bdfef9b6683..59d9ddf253b 100644
--- a/x-pack/metricbeat/module/iis/application_pool/reader.go
+++ b/x-pack/metricbeat/module/iis/application_pool/reader.go
@@ -112,16 +112,24 @@ func (r *Reader) initAppPools() error {
 		r.log.Info("no running application pools found")
 		return nil
 	}
+	isPDHError := func(err error) bool {
+		return errors.Is(err, pdh.PdhErrno(syscall.ERROR_NOT_FOUND)) ||
+			errors.Is(err, pdh.PDH_CSTATUS_NO_COUNTER) ||
+			errors.Is(err, pdh.PDH_CSTATUS_NO_COUNTERNAME) ||
+			errors.Is(err, pdh.PDH_CSTATUS_NO_INSTANCE) ||
+			errors.Is(err, pdh.PDH_CSTATUS_NO_OBJECT)
+	}
 	var newQueries []string
 	r.workerProcesses = make(map[string]string)
 	for key, value := range appPoolCounters {
 		childQueries, err := r.query.GetCounterPaths(value)
 		if err != nil {
-			if errors.Is(err, pdh.PdhErrno(syscall.ERROR_NOT_FOUND)) || errors.Is(err, pdh.PDH_CSTATUS_NO_COUNTER) || errors.Is(err, pdh.PDH_CSTATUS_NO_COUNTERNAME) || errors.Is(err, pdh.PDH_CSTATUS_NO_INSTANCE) || errors.Is(err, pdh.PDH_CSTATUS_NO_OBJECT) {
+			if isPDHError(err) {
 				r.log.Infow("Ignoring non existent counter", "error", err,
-					logp.Namespace("application pool"), "query", value)
+					logp.Namespace("application pool"), "query", value,
+				)
 			} else {
-				r.log.Error(err, `failed to expand counter path (query= "%v")`, value)
+				r.log.Errorf(`failed to expand counter path (query= "%v"): %w`, value, err)
 			}
 			continue
 		}