diff --git a/main/steps/step1.cpp b/main/steps/step1.cpp
index 5acfaa0..d8cd5b5 100644
--- a/main/steps/step1.cpp
+++ b/main/steps/step1.cpp
@@ -1,5 +1,6 @@
 #include "step1.h"
 
+__attribute__((unused))
 static const char *TAG = "step1";
 
 static char* COLOR_NAMES[] = {
diff --git a/main/steps/step2.cpp b/main/steps/step2.cpp
index 536313e..334c268 100644
--- a/main/steps/step2.cpp
+++ b/main/steps/step2.cpp
@@ -1,5 +1,6 @@
 #include "step2.h"
 
+__attribute__((unused))
 static const char *TAG = "step2";
 
 static const int NUM_SOLVES = 4;
diff --git a/main/steps/step3.cpp b/main/steps/step3.cpp
index 5007688..ca3dde3 100644
--- a/main/steps/step3.cpp
+++ b/main/steps/step3.cpp
@@ -4,6 +4,7 @@
 #define THREE_SECOND_TIME 90'000
 #define SIX_SECOND_TIME 75'000
 
+__attribute__((unused))
 static const char *TAG = "step3";
 
 static int tone = 0;
diff --git a/main/steps/step4.cpp b/main/steps/step4.cpp
index 1889a34..932ad66 100644
--- a/main/steps/step4.cpp
+++ b/main/steps/step4.cpp
@@ -1,5 +1,6 @@
 #include "step4.h"
 
+__attribute__((unused))
 static const char *TAG = "step4";
 
 static lv_obj_t* scr;
diff --git a/main/steps/step5.cpp b/main/steps/step5.cpp
index 49a602a..685d0fd 100644
--- a/main/steps/step5.cpp
+++ b/main/steps/step5.cpp
@@ -1,5 +1,6 @@
 #include "step5.h"
 
+__attribute__((unused))
 static const char *TAG = "step5";
 
 static const int TIMES_TO_SOLVE = 9; 
diff --git a/main/steps/step6.cpp b/main/steps/step6.cpp
index 9be0e54..8e6f5b0 100644
--- a/main/steps/step6.cpp
+++ b/main/steps/step6.cpp
@@ -1,5 +1,6 @@
 #include "step6.h"
 
+__attribute__((unused))
 static const char *TAG = "step6";
 
 static uint8_t cut_wires = 0;