diff --git a/quad/doc/zybo_pinout_assignments.md b/quad/doc/zybo_pinout_assignments.md
index 05c3de7e849595b35d19101580e31fed3ad2b52f..66b749749f57ac74a2c71aa4ace2be9b128f1337 100644
--- a/quad/doc/zybo_pinout_assignments.md
+++ b/quad/doc/zybo_pinout_assignments.md
@@ -8,10 +8,10 @@ The Zybo board has 6 PMOD Connectors. We use these for most quad I/O.
 ```
 Zybo PMOD Pin : Zync Pin : Xilinx Pin Name : Our Assignment
 
-JF1  : MIO-13 : N/A : unused
+JF1  : MIO-13 : N/A : I2C1 SDA
 JF2  : MIO-10 : N/A : I2C0 SCL
 JF3  : MIO-11 : N/A : I2C0 SDA
-JF4  : MIO-12 : N/A : unused
+JF4  : MIO-12 : N/A : I2C1 SCL
 JF7  : MIO-0  : N/A : unused
 JF8  : MIO-9  : N/A : unused
 JF9  : MIO-14 : N/A : unused