diff --git a/src/hmi.cpp b/src/hmi.cpp
index 1541c12..0aaff5f 100644
--- a/src/hmi.cpp
+++ b/src/hmi.cpp
@@ -60,14 +60,11 @@ private:
 };
 
 
-SwitchPort2 switch1;
-SwitchPort2 switch2;
-SwitchPort2 switch3;
+SwitchPort2 switch1 = SwitchPort2(BIT0);
+SwitchPort2 switch2 = SwitchPort2(BIT1);
+SwitchPort2 switch3 = SwitchPort2(BIT2);
 
 void hmiInit() {
-  switch1 = SwitchPort2(BIT0);
-  switch2 = SwitchPort2(BIT1);
-  switch3 = SwitchPort2(BIT2);
 }
 
 void hmiExec() {