diff --git a/tools/nightly22/build-sdcard.sh b/tools/nightly22/build-sdcard.sh
index 20eb061f5..f8a6342dc 100644
--- a/tools/nightly22/build-sdcard.sh
+++ b/tools/nightly22/build-sdcard.sh
@@ -28,14 +28,14 @@ else
   cp /home/opentx/horus-bitmaps/* ${workdir}/sdcard/horus/IMAGES/
 
   # Request sound pack generation
-  python3 -B ${workdir}/code/tools/nightly22/tts.py en csv files
-  python3 -B ${workdir}/code/tools/nightly22/tts.py fr csv files
-  python3 -B ${workdir}/code/tools/nightly22/tts.py es csv files
-  python3 -B ${workdir}/code/tools/nightly22/tts.py it csv files
-  python3 -B ${workdir}/code/tools/nightly22/tts.py de csv files
-  python3 -B ${workdir}/code/tools/nightly22/tts.py cz csv files
-  python3 -B ${workdir}/code/tools/nightly22/tts.py pt csv files
-  python3 -B ${workdir}/code/tools/nightly22/tts.py ru csv psv files
+  ${workdir}/code/tools/nightly22/tts.py en csv files
+  ${workdir}/code/tools/nightly22/tts.py fr csv files
+  ${workdir}/code/tools/nightly22/tts.py es csv files
+  ${workdir}/code/tools/nightly22/tts.py it csv files
+  ${workdir}/code/tools/nightly22/tts.py de csv files
+  ${workdir}/code/tools/nightly22/tts.py cz csv files
+  ${workdir}/code/tools/nightly22/tts.py pt csv files
+  ${workdir}/code/tools/nightly22/tts.py ru csv psv files
 
   # Create sdcards.zips for supported platforms
   mv /tmp/SOUNDS ${workdir}/sdcard/horus/
diff --git a/tools/nightly22/tts.py b/tools/nightly22/tts.py
index e2f2b1689..da2ce9dc3 100755
--- a/tools/nightly22/tts.py
+++ b/tools/nightly22/tts.py
@@ -23,6 +23,9 @@ from gtts import gTTS
 from tts_common import *
 board = "taranis"
 
+reload(sys)
+sys.setdefaultencoding('utf8')
+
 SOURCE_DIRECTORY = os.path.dirname(os.path.realpath(__file__))
 lib_path = os.path.abspath(os.path.join(SOURCE_DIRECTORY, '..', '..', 'radio', 'util'))
 sys.path.append(lib_path)