diff --git a/ssd1306/oled.c b/ssd1306/oled.c
index c39e6ad..4727202 100644
--- a/ssd1306/oled.c
+++ b/ssd1306/oled.c
@@ -12,7 +12,7 @@
 #define GPIO_RES		31 /* SODIMM 67 */
 
 #define SPI_DEVICE		1
-#define CHIP_SELECT		1
+#define CHIP_SELECT		0
 
 char value[10] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};