diff --git a/os/kernel/include/chioch.h b/os/kernel/include/chioch.h
index 05a185a4d..bf97c3f6f 100644
--- a/os/kernel/include/chioch.h
+++ b/os/kernel/include/chioch.h
@@ -298,7 +298,7 @@ typedef struct {
 /**
  * @brief   Adds condition flags to the channel's mask.
  * @details This function is usually called from the I/O ISTs in order to
- *          notify I/O conditions such as data events, errors, signalů
+ *          notify I/O conditions such as data events, errors, signal
  *          changes etc.
  *
  * @param[in] ip        pointer to a @p BaseAsynchronousChannel or derived