diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp
index daac8d71..eab695e2 100755
--- a/Firmware/ultralcd.cpp
+++ b/Firmware/ultralcd.cpp
@@ -5396,6 +5396,10 @@ static void lcd_nozzle_diameter_cycle(void) {
         nDiameter=800;
         break;
     case ClNozzleDiameter::_Diameter_800:
+        oNozzleDiameter=ClNozzleDiameter::_Diameter_1000;
+        nDiameter=1000;
+        break;
+    case ClNozzleDiameter::_Diameter_1000:
         oNozzleDiameter=ClNozzleDiameter::_Diameter_250;
         nDiameter=250;
         break;
@@ -5416,7 +5420,8 @@ do\
         case ClNozzleDiameter::_Diameter_250: fNozzleDiam = 0.25f; break;\
         case ClNozzleDiameter::_Diameter_400: fNozzleDiam = 0.4f; break;\
         case ClNozzleDiameter::_Diameter_600: fNozzleDiam = 0.6f; break;\
-        case ClNozzleDiameter::_Diameter_800: fNozzleDiam = 0.8f; break;\
+        case ClNozzleDiameter::_Diameter_800: fNozzleDiam = 0.8f; break; \
+        case ClNozzleDiameter::_Diameter_1000: fNozzleDiam = 1.0f; break;\
         default: fNozzleDiam = 0.4f; break;\
     }\
     MENU_ITEM_TOGGLE(_T(MSG_NOZZLE_DIAMETER), ftostr12ns(fNozzleDiam), lcd_nozzle_diameter_cycle);\
diff --git a/Firmware/util.h b/Firmware/util.h
index 6d34aa08..82fea70f 100644
--- a/Firmware/util.h
+++ b/Firmware/util.h
@@ -52,6 +52,7 @@ enum class ClNozzleDiameter:uint_least8_t
     _Diameter_400=40,
     _Diameter_600=60,
     _Diameter_800=80,
+    _Diameter_1000=100,
     _Diameter_Undef=EEPROM_EMPTY_VALUE
 };