diff --git a/src/main/java/tconstruct/library/tools/ToolCore.java b/src/main/java/tconstruct/library/tools/ToolCore.java
index 796fb4bd..468c1b1f 100644
--- a/src/main/java/tconstruct/library/tools/ToolCore.java
+++ b/src/main/java/tconstruct/library/tools/ToolCore.java
@@ -3,9 +3,9 @@ package tconstruct.library.tools;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.Optional;
 import java.util.Random;
 
+import cpw.mods.fml.common.Optional;
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
 import net.minecraft.block.Block;