diff --git a/Makefile.am b/Makefile.am
index 97bb7b6d..1f24f607 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -819,8 +819,7 @@ mbrola: \
 	espeak-ng-data/mbrola_ph/ir1_phtrans \
 	espeak-ng-data/mbrola_ph/it3_phtrans \
 	espeak-ng-data/mbrola_ph/la1_phtrans \
-	espeak-ng-data/mbrola_ph/lt1_phtrans \
-	espeak-ng-data/mbrola_ph/lt2_phtrans \
+	espeak-ng-data/mbrola_ph/lt_phtrans \
 	espeak-ng-data/mbrola_ph/mx1_phtrans \
 	espeak-ng-data/mbrola_ph/mx2_phtrans \
 	espeak-ng-data/mbrola_ph/nl_phtrans \
@@ -928,13 +927,7 @@ espeak-ng-data/mbrola_ph/la1_phtrans: phsource/mbrola/la1 src/espeak-ng
 	mkdir -p espeak-ng-data/mbrola_ph
 	ESPEAK_DATA_PATH=$(PWD) src/espeak-ng --compile-mbrola=phsource/mbrola/la1
 
-espeak-ng-data/mbrola_ph/lt1_phtrans: phsource/mbrola/lt1 src/espeak-ng
-	mkdir -p espeak-ng-data/mbrola_ph
-	ESPEAK_DATA_PATH=$(PWD) src/espeak-ng --compile-mbrola=phsource/mbrola/lt1
-
-espeak-ng-data/mbrola_ph/lt2_phtrans: phsource/mbrola/lt2 src/espeak-ng
-	mkdir -p espeak-ng-data/mbrola_ph
-	ESPEAK_DATA_PATH=$(PWD) src/espeak-ng --compile-mbrola=phsource/mbrola/lt2
+espeak-ng-data/mbrola_ph/lt_phtrans: phsource/mbrola/lt src/espeak-ng
 
 espeak-ng-data/mbrola_ph/mx1_phtrans: phsource/mbrola/mx1 src/espeak-ng
 	mkdir -p espeak-ng-data/mbrola_ph
diff --git a/phsource/mbrola/lt1 b/phsource/mbrola/lt
similarity index 100%
rename from phsource/mbrola/lt1
rename to phsource/mbrola/lt
diff --git a/phsource/mbrola/lt2 b/phsource/mbrola/lt2
deleted file mode 100644
index fce8aee0..00000000
--- a/phsource/mbrola/lt2
+++ /dev/null
@@ -1,53 +0,0 @@
-//0 ' NULL 0 NULL
-//0 , NULL 0 NULL
-//0 ; NULL 0 NULL
-0 ;; NULL 0 '
-0 @- NULL 0 NULL
-
-0 a: NULL 0 aa
-0 i: NULL 0 ii
-0 e NULL 0 E
-0 e: NULL 0 ea
-0 o: NULL 0 oo
-0 u: NULL 0 uu
-
-
-0 a : 0 aa
-0 i : 0 ii
-0 e : 0 ea
-0 o : 0 oo
-0 u : 0 uu
-
-0 ai NULL 50 a i
-0 au NULL 50 a u
-0 ei NULL 50 e i
-0 eu NULL 50 e u
-0 oi NULL 50 o i
-0 ui NULL 50 u i
-
-
-0 b; NULL 0 b'
-0 c; NULL 0 c'
-0 x; NULL 0 x'
-0 tS; NULL 0 tS'
-0 d; NULL 0 d'
-0 dz; NULL 0 dz'
-0 dZ; NULL 0 dZ'
-0 ;ei NULL 0 ei
-0 ;ie NULL 0 ie
-0 f; NULL 0 f'
-0 h; NULL 0 h'
-0 j; NULL 0 j'
-0 k; NULL 0 k'
-0 l; NULL 0 l'
-0 m; NULL 0 m'
-0 n; NULL 0 n'
-0 p; NULL 0 p'
-0 r; NULL 0 r'
-0 s; NULL 0 s'
-0 S; NULL 0 S'
-0 t; NULL 0 t'
-0 v; NULL 0 v'
-0 z; NULL 0 z'
-0 Z; NULL 0 Z'
-