diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index 647360ec8b..7fe9786e08 100644
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -4114,7 +4114,7 @@ inline void gcode_M140() {
    *   F<fan speed>
    */
   inline void gcode_M145() {
-    uint8_t material = code_seen('S') ? code_value_short() : 0;
+    int8_t material = code_seen('S') ? code_value_short() : 0;
     if (material < 0 || material > 1) {
       SERIAL_ERROR_START;
       SERIAL_ERRORLNPGM(MSG_ERR_MATERIAL_INDEX);
diff --git a/Marlin/ultralcd.cpp b/Marlin/ultralcd.cpp
index d86bacba7c..6f9fce382e 100644
--- a/Marlin/ultralcd.cpp
+++ b/Marlin/ultralcd.cpp
@@ -493,7 +493,7 @@ void lcd_set_home_offsets() {
       encoderPosition = 0;
       lcdDrawUpdate = 1;
     }
-    if (lcdDrawUpdate) lcd_implementation_drawedit(msg, "");
+    if (lcdDrawUpdate) lcd_implementation_drawedit(msg, (char*)"");
     if (LCD_CLICKED) lcd_goto_previous_menu();
   }
   static void lcd_babystep_x() { _lcd_babystep(X_AXIS, PSTR(MSG_BABYSTEPPING_X)); }
@@ -2338,7 +2338,7 @@ char* ftostr52(const float& x) {
    * MBL Move to mesh starting point
    */
   static void _lcd_level_bed_homing() {
-    if (lcdDrawUpdate) lcd_implementation_drawedit(PSTR("XYZ"), "Homing");
+    if (lcdDrawUpdate) lcd_implementation_drawedit(PSTR("XYZ"), (char*)"Homing");
     if (axis_known_position[X_AXIS] && axis_known_position[Y_AXIS] && axis_known_position[Z_AXIS]) {
       current_position[Z_AXIS] = MESH_HOME_SEARCH_Z;
       plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]);