diff --git a/lib/examples/ja/Graphics_and_Insets/XY-Pic.lyx b/lib/examples/ja/Graphics_and_Insets/XY-Pic.lyx
index 02a2172b99..1a57f28d83 100644
--- a/lib/examples/ja/Graphics_and_Insets/XY-Pic.lyx
+++ b/lib/examples/ja/Graphics_and_Insets/XY-Pic.lyx
@@ -35,7 +35,7 @@
 \language_package default
 \inputencoding utf8-platex
 \fontencoding global
-\font_roman "ae" "IPAexMincho"
+\font_roman "lmodern" "IPAexMincho"
 \font_sans "default" "IPAexGothic"
 \font_typewriter "default" "default"
 \font_math "auto" "auto"
diff --git a/lib/examples/ja/Modules/Braille.lyx b/lib/examples/ja/Modules/Braille.lyx
index edc2735003..8e0454a839 100644
--- a/lib/examples/ja/Modules/Braille.lyx
+++ b/lib/examples/ja/Modules/Braille.lyx
@@ -19,7 +19,7 @@ braille
 \language_package default
 \inputencoding utf8
 \fontencoding global
-\font_roman "default" "IPAexMincho"
+\font_roman "lmodern" "IPAexMincho"
 \font_sans "default" "IPAexGothic"
 \font_typewriter "default" "default"
 \font_math "auto" "auto"
diff --git a/lib/examples/ja/Modules/LilyPond_Book.lyx b/lib/examples/ja/Modules/LilyPond_Book.lyx
index ea67dcb59a..17f1b60f87 100644
--- a/lib/examples/ja/Modules/LilyPond_Book.lyx
+++ b/lib/examples/ja/Modules/LilyPond_Book.lyx
@@ -15,8 +15,8 @@ lilypond
 \inputencoding utf8-platex
 \fontencoding global
 \font_roman "lmodern" "IPAexMincho"
-\font_sans "lmss" "IPAexGothic"
-\font_typewriter "lmtt" "default"
+\font_sans "default" "IPAexGothic"
+\font_typewriter "default" "default"
 \font_math "auto" "auto"
 \font_default_family default
 \use_non_tex_fonts false
diff --git a/lib/examples/ja/Modules/Multilingual_Captions.lyx b/lib/examples/ja/Modules/Multilingual_Captions.lyx
index a282f99e4d..8810f3bc72 100644
--- a/lib/examples/ja/Modules/Multilingual_Captions.lyx
+++ b/lib/examples/ja/Modules/Multilingual_Captions.lyx
@@ -30,7 +30,7 @@ bicaption
 \language_package default
 \inputencoding utf8-platex
 \fontencoding global
-\font_roman "default" "IPAexMincho"
+\font_roman "lmodern" "IPAexMincho"
 \font_sans "default" "IPAexGothic"
 \font_typewriter "default" "default"
 \font_math "auto" "auto"
diff --git a/lib/examples/ja/Modules/Rnw_%28knitr%29.lyx b/lib/examples/ja/Modules/Rnw_%28knitr%29.lyx
index ec2e4350ee..2cbbfae29f 100644
--- a/lib/examples/ja/Modules/Rnw_%28knitr%29.lyx
+++ b/lib/examples/ja/Modules/Rnw_%28knitr%29.lyx
@@ -15,8 +15,8 @@ knitr
 \inputencoding utf8-platex
 \fontencoding global
 \font_roman "palatino" "IPAexMincho"
-\font_sans "lmss" "IPAexGothic"
-\font_typewriter "lmtt" "default"
+\font_sans "default" "IPAexGothic"
+\font_typewriter "default" "default"
 \font_math "auto" "auto"
 \font_default_family default
 \use_non_tex_fonts true
diff --git a/lib/examples/ja/Modules/Sweave.lyx b/lib/examples/ja/Modules/Sweave.lyx
index 709d2d017e..e801af9409 100644
--- a/lib/examples/ja/Modules/Sweave.lyx
+++ b/lib/examples/ja/Modules/Sweave.lyx
@@ -27,8 +27,8 @@ sweave
 \inputencoding utf8-platex
 \fontencoding global
 \font_roman "palatino" "IPAexMincho"
-\font_sans "lmss" "IPAexGothic"
-\font_typewriter "lmtt" "default"
+\font_sans "default" "IPAexGothic"
+\font_typewriter "default" "default"
 \font_math "auto" "auto"
 \font_default_family default
 \use_non_tex_fonts true
diff --git a/lib/examples/ja/Presentations/Beamer.lyx b/lib/examples/ja/Presentations/Beamer.lyx
index ddb51c50ca..d251a9b25c 100644
--- a/lib/examples/ja/Presentations/Beamer.lyx
+++ b/lib/examples/ja/Presentations/Beamer.lyx
@@ -24,7 +24,7 @@
 \language_package default
 \inputencoding utf8-platex
 \fontencoding global
-\font_roman "default" "IPAexMincho"
+\font_roman "lmodern" "IPAexMincho"
 \font_sans "default" "IPAexGothic"
 \font_typewriter "default" "default"
 \font_math "auto" "auto"