diff --git a/src/main/resources/forge_at.cfg b/src/main/resources/forge_at.cfg
index 6d64803c67..a9594f134b 100644
--- a/src/main/resources/forge_at.cfg
+++ b/src/main/resources/forge_at.cfg
@@ -165,4 +165,6 @@ public net.minecraft.network.play.server.S23PacketBlockChange field_148884_e # M
 # WorldType
 public-f net.minecraft.world.WorldType field_77139_a #worldTypes
 # DamageSource
-public net.minecraft.util.DamageSource *() #All methods public, most are already
\ No newline at end of file
+public net.minecraft.util.DamageSource *() #All methods public, most are already
+# ItemBlock
+public net.minecraft.item.ItemBlock field_150939_a # block
\ No newline at end of file