diff --git a/src/protocols/Print/ITA2String.cpp b/src/protocols/Print/ITA2String.cpp
index 368edebf..809a1c56 100644
--- a/src/protocols/Print/ITA2String.cpp
+++ b/src/protocols/Print/ITA2String.cpp
@@ -122,11 +122,15 @@ uint16_t ITA2String::getBits(char c) {
   // search ITA2 table
   uint16_t code = 0x0000;
   for(uint8_t i = 0; i < RADIOLIB_ITA2_LENGTH; i++) {
-    if(RADIOLIB_NONVOLATILE_READ_BYTE(&ITA2Table[i][0]) == c) {
+    char* ptr = const_cast<char*>(&ITA2Table[i][0]);
+    if(RADIOLIB_NONVOLATILE_READ_BYTE(ptr) == c) {
       // character is in letter shift
       code = (RADIOLIB_ITA2_LTRS << 5) | i;
       break;
-    } else if(RADIOLIB_NONVOLATILE_READ_BYTE(&ITA2Table[i][1]) == c) {
+    }
+    
+    ptr = const_cast<char*>(&ITA2Table[i][1]);
+    if(RADIOLIB_NONVOLATILE_READ_BYTE(ptr) == c) {
       // character is in figures shift
       code = (RADIOLIB_ITA2_FIGS << 5) | i;
       break;
diff --git a/src/protocols/Print/Print.cpp b/src/protocols/Print/Print.cpp
index c7abe695..fffa26c4 100644
--- a/src/protocols/Print/Print.cpp
+++ b/src/protocols/Print/Print.cpp
@@ -59,7 +59,7 @@ size_t RadioLibPrint::print(const __FlashStringHelper* fstr) {
     ITA2String ita2 = ITA2String(str);
     n = RadioLibPrint::print(ita2);
   } else {
-    n = write((uint8_t*)str, len);
+    n = write(reinterpret_cast<uint8_t*>(str), len);
   }
   #if !RADIOLIB_STATIC_ONLY
     delete[] str;
@@ -73,7 +73,7 @@ size_t RadioLibPrint::print(const String& str) {
     ITA2String ita2 = ITA2String(str.c_str());
     n = RadioLibPrint::print(ita2);
   } else {
-    n = write((uint8_t*)str.c_str(), str.length());
+    n = write(reinterpret_cast<uint8_t*>(const_cast<char*>(str.c_str())), str.length());
   }
   return(n);
 }
@@ -97,7 +97,7 @@ size_t RadioLibPrint::print(const char str[]) {
     ITA2String ita2 = ITA2String(str);
     n = RadioLibPrint::print(ita2);
   } else {
-    n = write((uint8_t*)str, strlen(str));
+    n = write(reinterpret_cast<uint8_t*>(const_cast<char*>(str)), strlen(str));
   }
   return(n);
 }
diff --git a/src/protocols/Print/Print.h b/src/protocols/Print/Print.h
index 3645416f..5760d484 100644
--- a/src/protocols/Print/Print.h
+++ b/src/protocols/Print/Print.h
@@ -62,8 +62,8 @@ class RadioLibPrint {
     uint8_t encoding = RADIOLIB_ASCII_EXTENDED;
     const char* lineFeed = "\r\n";
 
-    size_t printNumber(unsigned long, uint8_t);
-    size_t printFloat(double, uint8_t);
+    virtual size_t printNumber(unsigned long, uint8_t);
+    virtual size_t printFloat(double, uint8_t);
 
 };