diff --git a/solo/promicro/platformio.ini b/solo/promicro/platformio.ini
index cb049911..a0e0dbe7 100644
--- a/solo/promicro/platformio.ini
+++ b/solo/promicro/platformio.ini
@@ -31,6 +31,7 @@ build_flags = ${Promicro.build_flags}
   -D DISPLAY_CLASS=SSD1306Display
   -D FIRMWARE_SOLO_BUILD=1
   -D UI_SENSORS_PAGE=1
+  -D OLED_MISC_FIXED_FONT=1   ; full Latin/Greek/Cyrillic 6x9 font, ~14 KB flash
   -D ENABLE_SCREENSHOT
   -Os
   ; CardKB on the shared primary bus (D8=SDA / D7=SCL on this board).