diff --git a/mozilla/htmlparser/src/nsScanner.cpp b/mozilla/htmlparser/src/nsScanner.cpp
index a2bf6fc5175..69310a70eb6 100644
--- a/mozilla/htmlparser/src/nsScanner.cpp
+++ b/mozilla/htmlparser/src/nsScanner.cpp
@@ -249,7 +249,7 @@ PRBool nsScanner::Append(const char* aBuffer, PRUint32 aLen){
  
   if(mUnicodeDecoder) {
     PRInt32 unicharBufLen = 0;
-      mUnicodeDecoder->Length(aBuffer, 0, aLen, &unicharBufLen);
+      mUnicodeDecoder->GetMaxLength(aBuffer, aLen, &unicharBufLen);
       PRUnichar *unichars = new PRUnichar [ unicharBufLen+1 ];
 	  nsresult res;
 	  do {
diff --git a/mozilla/parser/htmlparser/src/nsScanner.cpp b/mozilla/parser/htmlparser/src/nsScanner.cpp
index a2bf6fc5175..69310a70eb6 100644
--- a/mozilla/parser/htmlparser/src/nsScanner.cpp
+++ b/mozilla/parser/htmlparser/src/nsScanner.cpp
@@ -249,7 +249,7 @@ PRBool nsScanner::Append(const char* aBuffer, PRUint32 aLen){
  
   if(mUnicodeDecoder) {
     PRInt32 unicharBufLen = 0;
-      mUnicodeDecoder->Length(aBuffer, 0, aLen, &unicharBufLen);
+      mUnicodeDecoder->GetMaxLength(aBuffer, aLen, &unicharBufLen);
       PRUnichar *unichars = new PRUnichar [ unicharBufLen+1 ];
 	  nsresult res;
 	  do {