diff --git a/solo/gat562_mesh_watch13/platformio.ini b/solo/gat562_mesh_watch13/platformio.ini
index 114bd1b4..b45dcff7 100644
--- a/solo/gat562_mesh_watch13/platformio.ini
+++ b/solo/gat562_mesh_watch13/platformio.ini
@@ -31,6 +31,7 @@ build_flags =
   -D FIRMWARE_SOLO_BUILD=1
   -D MESHCORE_VERSION='"1.18.0"'
   -D UI_SENSORS_PAGE=1
+  -D OLED_MISC_FIXED_FONT=1   ; full Latin/Greek/Cyrillic 6x9 font, ~14 KB flash
   -D ADVERT_NAME='"@@MAC"'
   ; GPS — re-enable (base undefines it); Serial1 pins 15/16 from variant
   -D ENV_INCLUDE_GPS=1