diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp
index 1cac19a9f..c1295f4df 100755
--- a/Firmware/ultralcd.cpp
+++ b/Firmware/ultralcd.cpp
@@ -1414,9 +1414,7 @@ void lcd_commands()
                 break;
             case 7:
                 lay1cal_meander();
-
-                strcpy(cmd1, "G1 X50 Y35 E");
-                strcat(cmd1, ftostr43(extr));
+                sprintf_P(cmd1, PSTR("G1 X50 Y35 E%-.3f"), extr);
                 enquecommand(cmd1);
 
                 lcd_commands_step = 6;