diff --git a/build/linux/appimage/3_dist-gimp-goappimage.sh b/build/linux/appimage/3_dist-gimp-goappimage.sh
index 2275bbd9ed..8ffe5fe266 100644
--- a/build/linux/appimage/3_dist-gimp-goappimage.sh
+++ b/build/linux/appimage/3_dist-gimp-goappimage.sh
@@ -296,6 +296,9 @@ sed -i '/kudo/d' $USR_DIR/share/metainfo/$APP_ID.appdata.xml
 sed -i "s/date=\"TODO\"/date=\"`date --iso-8601`\"/" $USR_DIR/share/metainfo/$APP_ID.appdata.xml
 ### mypaint brushes
 bund_usr "$UNIX_PREFIX" "share/mypaint-data/1.0"
+### Needed for 'th' word breaking in Text tool etc
+bund_usr "$UNIX_PREFIX" "share/libthai"
+conf_app LIBTHAI_DICTDIR "share/libthai"
 ### Needed for full CJK and Cyrillic support in file-pdf
 bund_usr "$UNIX_PREFIX" "share/poppler"
 ### file-wmf support (not portable, depends on how the distro deals with PS fonts)
diff --git a/build/linux/appimage/AppRun b/build/linux/appimage/AppRun
index d04e1221c7..2d5b6c2aee 100644
--- a/build/linux/appimage/AppRun
+++ b/build/linux/appimage/AppRun
@@ -33,6 +33,7 @@ export GIMP3_LOCALEDIR="$HERE"/GIMP3_LOCALEDIR_WILD
 export GIMP3_SYSCONFDIR="$HERE"/GIMP3_SYSCONFDIR_WILD
 
 ## Other paths (feature-related)
+export LIBTHAI_DICTDIR="$HERE"/LIBTHAI_DICTDIR_WILD
 export GI_TYPELIB_PATH="$HERE"/GI_TYPELIB_PATH_WILD:"$GI_TYPELIB_PATH"
 export PYTHONHOME="$HERE"/usr
 export PYTHONDONTWRITEBYTECODE=1