diff --git a/Marlin/ultralcd.cpp b/Marlin/ultralcd.cpp
index d7bc24533b..4eaab20729 100755
--- a/Marlin/ultralcd.cpp
+++ b/Marlin/ultralcd.cpp
@@ -1983,7 +1983,7 @@ void kill_screen(const char* lcd_msg) {
         STATIC_ITEM(MSG_INFO_PRINT_LONGEST ": ", false, false);                                        // Longest job time:
         STATIC_ITEM("", false, false, buffer);                                                         // 99y 364d 23h 59m 59s
 
-        sprintf_P(buffer, PSTR("%im"), stats.filamentUsed / 1000);
+        sprintf_P(buffer, PSTR("%ldm"), long(stats.filamentUsed / 1000));
         STATIC_ITEM(MSG_INFO_PRINT_FILAMENT ": ", false, false);                                       // Extruded total:
         STATIC_ITEM("", false, false, buffer);                                                         // 125m
         END_SCREEN();