diff --git a/cpp/src/phonenumbers/asyoutypeformatter.cc b/cpp/src/phonenumbers/asyoutypeformatter.cc
index 1111fde65..beef03b29 100644
--- a/cpp/src/phonenumbers/asyoutypeformatter.cc
+++ b/cpp/src/phonenumbers/asyoutypeformatter.cc
@@ -469,8 +469,8 @@ bool AsYouTypeFormatter::AbleToExtractLongerNdd() {
     // extract a new NDD.
     national_number_.insert(0, national_prefix_extracted_);
     // Remove the previously extracted NDD from prefixBeforeNationalNumber. We
-    // cannot simply set it to empty string because people sometimes enter
-    // national prefix after country code, e.g +44 (0)20-1234-5678.
+    // cannot simply set it to empty string because people sometimes incorrectly
+    // enter national prefix after the country code, e.g. +44 (0)20-1234-5678.
     int index_of_previous_ndd =
         prefix_before_national_number_.find_last_of(national_prefix_extracted_);
     prefix_before_national_number_.resize(index_of_previous_ndd);
diff --git a/java/libphonenumber/src/com/google/i18n/phonenumbers/AsYouTypeFormatter.java b/java/libphonenumber/src/com/google/i18n/phonenumbers/AsYouTypeFormatter.java
index c1ea69f7a..8cc31f5c0 100644
--- a/java/libphonenumber/src/com/google/i18n/phonenumbers/AsYouTypeFormatter.java
+++ b/java/libphonenumber/src/com/google/i18n/phonenumbers/AsYouTypeFormatter.java
@@ -397,8 +397,8 @@ public class AsYouTypeFormatter {
       // Put the extracted NDD back to the national number before attempting to extract a new NDD.
       nationalNumber.insert(0, nationalPrefixExtracted);
       // Remove the previously extracted NDD from prefixBeforeNationalNumber. We cannot simply set
-      // it to empty string because people sometimes enter national prefix after country code, e.g
-      // +44 (0)20-1234-5678.
+      // it to empty string because people sometimes incorrectly enter national prefix after the
+      // country code, e.g. +44 (0)20-1234-5678.
       int indexOfPreviousNdd = prefixBeforeNationalNumber.lastIndexOf(nationalPrefixExtracted);
       prefixBeforeNationalNumber.setLength(indexOfPreviousNdd);
     }
diff --git a/javascript/i18n/phonenumbers/asyoutypeformatter.js b/javascript/i18n/phonenumbers/asyoutypeformatter.js
index 52952a416..0d3672de5 100644
--- a/javascript/i18n/phonenumbers/asyoutypeformatter.js
+++ b/javascript/i18n/phonenumbers/asyoutypeformatter.js
@@ -687,8 +687,8 @@ i18n.phonenumbers.AsYouTypeFormatter.prototype.ableToExtractLongerNdd_ =
     this.nationalNumber_.append(this.nationalPrefixExtracted_);
     this.nationalNumber_.append(nationalNumberStr);
     // Remove the previously extracted NDD from prefixBeforeNationalNumber. We
-    // cannot simply set it to empty string because people sometimes enter
-    // national prefix after country code, e.g +44 (0)20-1234-5678.
+    // cannot simply set it to empty string because people sometimes incorrectly
+    // enter national prefix after the country code, e.g. +44 (0)20-1234-5678.
     /** @type {string} */
     var prefixBeforeNationalNumberStr =
         this.prefixBeforeNationalNumber_.toString();