diff --git a/cmake/Bitmaps.cmake b/cmake/Bitmaps.cmake
index 48b16f5a9..41a8589b6 100644
--- a/cmake/Bitmaps.cmake
+++ b/cmake/Bitmaps.cmake
@@ -41,7 +41,7 @@ macro(add_truetype_font_target name size subset effect args)
     OUTPUT ${target}.png ${target}.specs ${target}.lbm
     COMMAND ${PYTHON_EXECUTABLE} ${TOOLS_DIR}/build-font-bitmap.py --subset ${subset} --size ${size} --font ${font} --output ${target}
     COMMAND ${PYTHON_EXECUTABLE} ${UTILS_DIR}/bin2lbm.py ${target}.png ${target}.lbm
-    DEPENDS ${TOOLS_DIR}/build-font-bitmap.py ${TOOLS_DIR}/charset.py ${LIBOPENUI_TOOLS_DIR}/encode-bitmap.py ${RADIO_SRC_DIR}/translations/cn.h.txt ${RADIO_SRC_DIR}/fonts/extra_${size}px.png
+    DEPENDS ${TOOLS_DIR}/build-font-bitmap.py ${TOOLS_DIR}/charset.py ${LIBOPENUI_TOOLS_DIR}/encode-bitmap.py
   )
   add_custom_target(truetype_font_${name} DEPENDS ${target}.png ${target}.specs)
   set(truetype_fonts_targets ${truetype_fonts_targets} truetype_font_${name})
diff --git a/radio/src/fonts/extra_13px.png b/radio/src/fonts/extra_13px.png
deleted file mode 100644
index cbeb4758e..000000000
Binary files a/radio/src/fonts/extra_13px.png and /dev/null differ
diff --git a/radio/src/fonts/extra_15px.png b/radio/src/fonts/extra_15px.png
deleted file mode 100644
index cbeb4758e..000000000
Binary files a/radio/src/fonts/extra_15px.png and /dev/null differ
diff --git a/radio/src/fonts/extra_24px.png b/radio/src/fonts/extra_24px.png
deleted file mode 100644
index cbeb4758e..000000000
Binary files a/radio/src/fonts/extra_24px.png and /dev/null differ
diff --git a/radio/src/fonts/extra_32px.png b/radio/src/fonts/extra_32px.png
deleted file mode 100644
index cbeb4758e..000000000
Binary files a/radio/src/fonts/extra_32px.png and /dev/null differ
diff --git a/radio/src/fonts/extra_64px.png b/radio/src/fonts/extra_64px.png
deleted file mode 100644
index cbeb4758e..000000000
Binary files a/radio/src/fonts/extra_64px.png and /dev/null differ
diff --git a/radio/src/fonts/extra_9px.png b/radio/src/fonts/extra_9px.png
deleted file mode 100644
index cbeb4758e..000000000
Binary files a/radio/src/fonts/extra_9px.png and /dev/null differ
diff --git a/tools/build-font-bitmap.py b/tools/build-font-bitmap.py
index 7ad1a7181..be9f6b236 100755
--- a/tools/build-font-bitmap.py
+++ b/tools/build-font-bitmap.py
@@ -7,6 +7,7 @@ import sys
 from PIL import Image, ImageDraw, ImageFont
 from charset import get_chars, special_chars, extra_chars, standard_chars, is_cjk_char
 
+EXTRA_BITMAP_MAX_WIDTH = 297
 
 class FontBitmap:
     def __init__(self, language, font_size, font_name, foreground, background):
@@ -17,7 +18,9 @@ class FontBitmap:
         self.background = background
         self.font = self.load_font(font_name)
         self.extra_bitmap = self.load_extra_bitmap()
-        #self.extra_bitmap = None
+        self.extra_bitmap_width = EXTRA_BITMAP_MAX_WIDTH
+        if self.extra_bitmap is not None:
+            self.extra_bitmap_width = self.extra_bitmap.width
 
     def load_extra_bitmap(self):
         try:
@@ -63,7 +66,7 @@ class FontBitmap:
         (_,baseline), (offset_x, offset_y) = self.font.font.getsize(self.chars)
         (text_width, text_height) = self.get_text_dimensions(self.chars)
 
-        img_width = text_width + self.extra_bitmap.width
+        img_width = text_width + self.extra_bitmap_width
         image = Image.new("RGB", (img_width, text_height), self.background)
         draw = ImageDraw.Draw(image)