diff --git a/include/Utils/StringUtils.h b/include/Utils/StringUtils.h
index 9dc91d6b..6ba28348 100644
--- a/include/Utils/StringUtils.h
+++ b/include/Utils/StringUtils.h
@@ -28,4 +28,3 @@ boolean isDigitStr(const String&);
 
 String prettyBytes(size_t size);
 
-const char getErrorLevelStr(uint8_t level);
\ No newline at end of file
diff --git a/src/Utils/StringUtils.cpp b/src/Utils/StringUtils.cpp
index bcb2351f..bf6af4b1 100644
--- a/src/Utils/StringUtils.cpp
+++ b/src/Utils/StringUtils.cpp
@@ -111,16 +111,3 @@ String prettyBytes(size_t size) {
         return String(size / 1024.0 / 1024.0 / 1024.0) + "GB";
 }
 
-const char getErrorLevelStr(uint8_t level) {
-    switch (level) {
-        case EL_INFO:
-            return 'I';
-        case EL_WARNING:
-            return 'W';
-        case EL_ERROR:
-            return 'E';
-        default:
-            break;
-    }
-    return '?';
-}
\ No newline at end of file