diff --git a/README.md b/README.md
index 636d6931..3027e355 100644
--- a/README.md
+++ b/README.md
@@ -260,7 +260,7 @@ The parameter "gpio_exp_config" is a semicolon (;) separated list with following
 ```
 model=<model>,addr=<addr>,[,port=system|dac][,base=<n>|100][,count=<n>|16][,intr=<gpio>][,cs=<gpio>][,speed=<Hz>]
 ```	
-- model: pca9535, pca85xx (untested), mcp23017 and mcp23s17 (SPI version, untested)
+- model: pca9535, pca85xx (untested), mcp23017 and mcp23s17 (SPI version)
 - addr: chip i2c/spi address (decimal)
 - port (I2C): use either "system" port (shared with display for example) or "dac" port (system is default)
 - cs (SPI): gpio used for Chip Select