diff --git a/phsource/ph_vietnam b/phsource/ph_vietnam
index d4defae3..38e0ea64 100644
--- a/phsource/ph_vietnam
+++ b/phsource/ph_vietnam
@@ -333,7 +333,7 @@ phoneme y
 	length 180
   ENDIF
   //FMT(vowel/u#_5)
-  FMT(vietnam/y, 80)
+  FMT(vietnam/y_2, 60)
 endphoneme
 
 
diff --git a/phsource/vietnam/i b/phsource/vietnam/i
index f6c7291c..aed36c38 100644
Binary files a/phsource/vietnam/i and b/phsource/vietnam/i differ
diff --git a/phsource/vietnam/ie b/phsource/vietnam/ie
index f5cf5aee..46786be1 100644
Binary files a/phsource/vietnam/ie and b/phsource/vietnam/ie differ
diff --git a/phsource/vietnam/y_2 b/phsource/vietnam/y_2
new file mode 100644
index 00000000..7ed4edf1
Binary files /dev/null and b/phsource/vietnam/y_2 differ