diff --git a/cpu/kinetis_common/include/periph_cpu.h b/cpu/kinetis_common/include/periph_cpu.h
index 650c514d7888..489003f17243 100644
--- a/cpu/kinetis_common/include/periph_cpu.h
+++ b/cpu/kinetis_common/include/periph_cpu.h
@@ -59,7 +59,7 @@ typedef uint16_t gpio_t;
  *
  * We use the following bits to encode the pin mode:
  * - bit 0: 0 for pull-down or 1 for pull-up
- * - bit 1: pull register enable (as configured in bit 0)
+ * - bit 1: pull resistor enable (as configured in bit 0)
  * - bit 5: OD enable
  * - bit 7: output or input mode
  */