diff --git a/src/dash/models/DashManifestModel.js b/src/dash/models/DashManifestModel.js
index 161fef97fc..23b01dc485 100644
--- a/src/dash/models/DashManifestModel.js
+++ b/src/dash/models/DashManifestModel.js
@@ -892,8 +892,8 @@ function DashManifestModel() {
 
         let id = Period.DEFAULT_ID + '_' + i;
 
-        if (realPeriod.hasOwnProperty(DashConstants.ID) && realPeriod.id.length > 0 && realPeriod.id !== '__proto__') {
-            id = realPeriod.id;
+        if (realPeriod.hasOwnProperty(DashConstants.ID) && realPeriod.id.toString().length > 0 && realPeriod.id !== '__proto__') {
+            id = realPeriod.id.toString();
         }
 
         return id;
diff --git a/src/streaming/rules/abr/ThroughputRule.js b/src/streaming/rules/abr/ThroughputRule.js
index 260280bccf..5964385bc5 100644
--- a/src/streaming/rules/abr/ThroughputRule.js
+++ b/src/streaming/rules/abr/ThroughputRule.js
@@ -72,7 +72,7 @@ function ThroughputRule(config) {
                     switchRequest.reason = {
                         throughput,
                         latency,
-                        message: `[ThroughputRule]: Switching to Representation with bitrate ${switchRequest.representation.bitrateInKbit} kbit/s. Throughput: ${throughput}`
+                        message:`[ThroughputRule]: Switching to Representation with bitrate ${switchRequest.representation ? switchRequest.representation.bitrateInKbit : 'n/a'} kbit/s. Throughput: ${throughput}`
                     };
                     scheduleController.setTimeToLoadDelay(0);
                 }