diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b09d0b..bb5053d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,9 +11,17 @@ smaller form factor.
 fits in USB type-A port.
 uses CH32V203 as it is smaller, cheaper, and requires less external parts (DP pull-up, crystal).
 
+issues:
+
+- USB pins are mirrored
+
 v0
 ==
 
 this is a large development board.
 it accepts the classical STM32F103 (which I'm more familiar with), and CH32V203 (cheaper).
 it has a proper debug port and buttons.
+
+issues:
+
+- USB pins are mirrored