diff --git a/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp b/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp
index 7496c9e9b5..d136f0000d 100644
--- a/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp
+++ b/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp
@@ -1790,8 +1790,8 @@ void unified_bed_leveling::smart_fill_mesh() {
     SERIAL_ECHOLNPGM("Meshes go from ", hex_address((void*)settings.meshes_start_index()), " to ", hex_address((void*)settings.meshes_end_index()));
     serial_delay(50);
 
-    SERIAL_ECHOLNPGM("sizeof(ubl) :  ", sizeof(ubl));         SERIAL_EOL();
-    SERIAL_ECHOLNPGM("z_value[][] size: ", sizeof(z_values)); SERIAL_EOL();
+    SERIAL_ECHOLNPGM("sizeof(unified_bed_leveling) :  ", sizeof(unified_bed_leveling));
+    SERIAL_ECHOLNPGM("z_value[][] size: ", sizeof(z_values));
     serial_delay(25);
 
     SERIAL_ECHOLNPGM("EEPROM free for UBL: ", hex_address((void*)(settings.meshes_end_index() - settings.meshes_start_index())));