diff --git a/src/hmi.cpp b/src/hmi.cpp
index 9a53260..7ee6660 100644
--- a/src/hmi.cpp
+++ b/src/hmi.cpp
@@ -151,7 +151,7 @@ private:
 	e_state m_state;
 	uint32_t m_timeout;
 };
-class Led1 : Led {
+class Led1 : public Led {
 public:
 	Led1(uint16_t bit) : Led() {
 		m_bit = bit;
@@ -168,7 +168,7 @@ public:
 private:
 	uint16_t m_bit;
 };
-class Led2 : Led {
+class Led2 : public Led {
 public:
 	Led1(uint16_t bit) : Led() {
 		m_bit = bit;