diff --git a/drivers/include/periph/cpuid.h b/drivers/include/periph/cpuid.h
index dbbb0bde31..6f6af2dedf 100644
--- a/drivers/include/periph/cpuid.h
+++ b/drivers/include/periph/cpuid.h
@@ -48,7 +48,7 @@ extern "C" {
 /**
  * @brief   Gets the serial number of the CPU.
  *
- * @param[out] id   The serial number of the CPU of length CPU_ID_LEN (must be
+ * @param[out] id   The serial number of the CPU of length CPUID_LEN (must be
  *                  defined in the CPU's cpu_conf.h)
  */
 void cpuid_get(void *id);