diff --git a/src/main/java/com/cricketcraft/chisel/Features.java b/src/main/java/com/cricketcraft/chisel/Features.java
index ac9f4c0c..b04053a3 100644
--- a/src/main/java/com/cricketcraft/chisel/Features.java
+++ b/src/main/java/com/cricketcraft/chisel/Features.java
@@ -1674,7 +1674,7 @@ public enum Features {
 		@Override
 		void addRecipes() {
 			GameRegistry.addRecipe(new ShapedOreRecipe(new ItemStack(ChiselBlocks.paperwall, 8), "ppp", "psp", "ppp", ('p'), Items.paper, ('s'), "stickWood"));
-			GameRegistry.addRecipe(new ShapedOreRecipe(new ItemStack(ChiselBlocks.paperwall, 4), "pp", "pp", "ppp", ('p'), paperwall));
+			GameRegistry.addRecipe(new ShapedOreRecipe(new ItemStack(ChiselBlocks.paperwall_block, 4), "pp", "pp", "ppp", ('p'), ChiselBlocks.paperwall));
 		}
 	},
 
@@ -2364,6 +2364,7 @@ public enum Features {
 			warningSign.carverHelper.addVariation("tile.warningSign.11.desc", 11, "warning/sound");
 			warningSign.carverHelper.addVariation("tile.warningSign.12.desc", 12, "warning/noentry");
 			warningSign.carverHelper.addVariation("tile.warningSign.13.desc", 13, "warning/cryogenic");
+			warningSign.carverHelper.addVariation("tile.warningSign.14.desc", 14, "warning/oxygen");
 			warningSign.carverHelper.registerAll(warningSign, "warningSign");
 			Carving.chisel.registerOre("warningSign", "warningSign");
 		}
diff --git a/src/main/resources/assets/chisel/lang/en_US.lang b/src/main/resources/assets/chisel/lang/en_US.lang
index 741b4087..f48deee5 100644
--- a/src/main/resources/assets/chisel/lang/en_US.lang
+++ b/src/main/resources/assets/chisel/lang/en_US.lang
@@ -108,6 +108,7 @@ tile.warningSign.10.desc=Under Construction
 tile.warningSign.11.desc=Loud Sounds
 tile.warningSign.12.desc=No Entry
 tile.warningSign.13.desc=Cryogenic Freezing in progress
+tile.warningSign.14.desc=Oxygen Required
 
 #Energised Void Stone Blocks
 tile.voidstone2.name=Energised Voidstone
diff --git a/src/main/resources/assets/chisel/textures/blocks/warning/oxygen.png b/src/main/resources/assets/chisel/textures/blocks/warning/oxygen.png
new file mode 100755
index 00000000..27f6e41e
Binary files /dev/null and b/src/main/resources/assets/chisel/textures/blocks/warning/oxygen.png differ