diff --git a/devices/ssd1306/ssd1306.go b/devices/ssd1306/ssd1306.go
index cd63904..317cd81 100644
--- a/devices/ssd1306/ssd1306.go
+++ b/devices/ssd1306/ssd1306.go
@@ -75,7 +75,7 @@ type Opts struct {
 //
 // Wiring
 //
-// Connect SDA to MOSI, SCK to SCLK, CS to CS.
+// Connect SDA to SPI_MOSI, SCK to SPI_CLK, CS to SPI_CS.
 //
 // In 3-wire SPI mode, pass nil for 'dc'. In 4-wire SPI mode, pass a GPIO pin
 // to use.