diff --git a/drivers/regulator/mcp16502.c b/drivers/regulator/mcp16502.c
index 042668385678..abee1b09008d 100644
--- a/drivers/regulator/mcp16502.c
+++ b/drivers/regulator/mcp16502.c
@@ -77,6 +77,7 @@
  * @MCP16502_REG_A: active state register
  * @MCP16502_REG_LPM: low power mode state register
  * @MCP16502_REG_HIB: hibernate state register
+ * @MCP16502_REG_HPM: high-performance mode register
  * @MCP16502_REG_SEQ: startup sequence register
  * @MCP16502_REG_CFG: configuration register
  */