diff --git a/phsource/ph_vietnam b/phsource/ph_vietnam
index 02083116..293ec55f 100644
--- a/phsource/ph_vietnam
+++ b/phsource/ph_vietnam
@@ -918,7 +918,7 @@ phoneme h
   ELIF nextPh(#e) THEN
     WAV(h/he)
   ELIF nextPh(#i) THEN
-    WAV(h/hi)
+    WAV(vietnam/hi)
   ELIF nextPh(#o) THEN
     WAV(h/ho)
   ELIF nextPh(#u) THEN
diff --git a/phsource/vietnam/hi.wav b/phsource/vietnam/hi.wav
new file mode 100644
index 00000000..c2b51e8e
Binary files /dev/null and b/phsource/vietnam/hi.wav differ