diff --git a/phsource/ph_vietnam b/phsource/ph_vietnam
index 19d6b6ec..616efbb2 100644
--- a/phsource/ph_vietnam
+++ b/phsource/ph_vietnam
@@ -330,7 +330,7 @@ phoneme y
 	length 180
   ENDIF
   //FMT(vowel/u#_5)
-  FMT(vietnam/y, 60)
+  FMT(vietnam/y_2, 60)
 endphoneme
 
 
diff --git a/phsource/vietnam/ie b/phsource/vietnam/ie
index 48fb456d..dac9ceb5 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
index 7ed4edf1..4831e441 100644
Binary files a/phsource/vietnam/y_2 and b/phsource/vietnam/y_2 differ