diff --git a/src/main/java/com/hbm/render/tileentity/RenderRBMKNumitron.java b/src/main/java/com/hbm/render/tileentity/RenderRBMKNumitron.java
index b1a1d1bb0..2270591b7 100644
--- a/src/main/java/com/hbm/render/tileentity/RenderRBMKNumitron.java
+++ b/src/main/java/com/hbm/render/tileentity/RenderRBMKNumitron.java
@@ -74,12 +74,12 @@ public class RenderRBMKNumitron extends TileEntitySpecialRenderer {
 
 			//** Fill up to 7 characters */
 			//** For negative numbers when zeroes are added: put the zeroes between the '-' and the number */
-			if ((value.length() < 7) && (value.charAt(0) == '-') && (unit.no_leading_zeroes == false)) {
+			if ((value.length() < 7) && (value.charAt(0) == '-') && unit.leading_zeroes) {
 				value = value.substring(1);
 				while(value.length() < 6) value = "0" + value;
 				value = "-" + value;
 			} else {
-				String fill_char = unit.no_leading_zeroes?" ":"0";
+				String fill_char = unit.leading_zeroes?"0":" ";
 				while(value.length() < 7) value = fill_char + value;
 			}
 			
diff --git a/src/main/java/com/hbm/tileentity/machine/rbmk/TileEntityRBMKNumitron.java b/src/main/java/com/hbm/tileentity/machine/rbmk/TileEntityRBMKNumitron.java
index 2df44ce5b..c7fe719c2 100644
--- a/src/main/java/com/hbm/tileentity/machine/rbmk/TileEntityRBMKNumitron.java
+++ b/src/main/java/com/hbm/tileentity/machine/rbmk/TileEntityRBMKNumitron.java
@@ -89,7 +89,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		/** Whether this display is visible on the panel */
 		public boolean active;
 		/** If leading zeros should not be added */
-		public boolean no_leading_zeroes;
+		public boolean leading_zeroes;
 		/** Which digits are activated (bit mask, msb ignored) */
 		public long active_digits;
 		/** Display mode 0=normal, 1=integer */
@@ -99,6 +99,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 			label = "Display " + (initialIndex + 1);
 			active_digits = 0b01111111;
 			shorten_number = true;
+			leading_zeroes = true;
 		}
 		
 		public void update() {
@@ -123,7 +124,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		public void serialize(ByteBuf buf) {
 			buf.writeBoolean(shorten_number);
 			buf.writeLong(active_digits);
-			buf.writeBoolean(no_leading_zeroes);
+			buf.writeBoolean(leading_zeroes);
 			buf.writeBoolean(active);
 			buf.writeBoolean(polling);
 			BufferUtil.writeString(buf, label);
@@ -134,7 +135,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		public void deserialize(ByteBuf buf) {
 			shorten_number = buf.readBoolean();
 			active_digits = buf.readLong();
-			no_leading_zeroes = buf.readBoolean();
+			leading_zeroes = buf.readBoolean();
 			active = buf.readBoolean();
 			polling = buf.readBoolean();
 			label = BufferUtil.readString(buf);
@@ -145,7 +146,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		public void readFromNBT(NBTTagCompound nbt, int index) {
 			this.shorten_number = nbt.getBoolean("shorten_number" + index);
 			this.active_digits = nbt.getLong("active_digits" + index);
-			this.no_leading_zeroes = nbt.getBoolean("no_leading_zeroes" + index);
+			this.leading_zeroes = nbt.getBoolean("leading_zeroes" + index);
 			this.active = nbt.getBoolean("active" + index);
 			this.polling = nbt.getBoolean("polling" + index);
 			this.label = nbt.getString("label" + index);
@@ -156,7 +157,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		public void writeToNBT(NBTTagCompound nbt, int index) {
 			nbt.setBoolean("shorten_number" + index, shorten_number);
 			nbt.setLong("active_digits" + index, active_digits);
-			nbt.setBoolean("no_leading_zeroes" + index, no_leading_zeroes);
+			nbt.setBoolean("leading_zeroes" + index, leading_zeroes);
 			nbt.setBoolean("active" + index, active);
 			nbt.setBoolean("polling" + index, polling);
 			nbt.setString("label" + index, label);
@@ -205,7 +206,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		java.util.LinkedHashMap<String, Object> map = new java.util.LinkedHashMap<>();
 		map.put("shorten_number", displays[idx].shorten_number);
 		map.put("active_digits", displays[idx].active_digits);
-		map.put("no_leading_zeroes", displays[idx].no_leading_zeroes);
+		map.put("leading_zeroes", displays[idx].leading_zeroes);
 		map.put("active", displays[idx].active);
 		map.put("polling", displays[idx].polling);
 		map.put("label", displays[idx].label);
@@ -267,10 +268,10 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 
 	@Callback(direct = true, limit = 2)
 	@Optional.Method(modid = "OpenComputers")
-	public Object[] setDisplayNoLeadingZeroes(Context context, Arguments args) {
+	public Object[] setDisplayLeadingZeroes(Context context, Arguments args) {
 		int idx = args.checkInteger(0) - 1;
 		if(idx < 0 || idx >= 2) return new Object[] {false, "Invalid index (1-2)"};
-		displays[idx].no_leading_zeroes = args.checkBoolean(1);
+		displays[idx].leading_zeroes = args.checkBoolean(1);
 		markDirty();
 		return new Object[] {true};
 	}