diff --git a/micropython/modules/pico_display/README.md b/micropython/modules/pico_display/README.md
index 01e2660f..08a9934f 100644
--- a/micropython/modules/pico_display/README.md
+++ b/micropython/modules/pico_display/README.md
@@ -137,7 +137,7 @@ picodisplay.pixel(x, y)
 Draws a horixontal line of pixels to the buffer.  The `x` and `y` parameters specify the coordinates of the first pixel of the line.  The `l` parameter describes the length of the line in pixels.  This function will only extend the line towards the end of the screen, i.e. the `x` coordinate should specify the left hand extreme of the line.
 
 ```python
-picodisplay.span(x, y, l)
+picodisplay.pixel_span(x, y, l)
 ```
 
 ### rectangle