1 files changed, 2 insertions, 2 deletions
diff --git a/src/main/java/gregtech/api/objects/GT_FluidStack.java b/src/main/java/gregtech/api/objects/GT_FluidStack.java
index ac54003d35..11571ba816 100644
--- a/src/main/java/gregtech/api/objects/GT_FluidStack.java
+++ b/src/main/java/gregtech/api/objects/GT_FluidStack.java
@@ -18,7 +18,7 @@ import net.minecraftforge.fluids.FluidStack;
 public class GT_FluidStack extends FluidStack {
 	private static final Collection<GT_FluidStack> sAllFluidStacks = new ArrayList<GT_FluidStack>(5000);
 	private Fluid mFluid;
-	private static boolean lock=false; 
+	private static volatile boolean lock=false; 
 	
     public GT_FluidStack(Fluid aFluid, int aAmount) {
     	super(aFluid, aAmount);
@@ -30,7 +30,7 @@ public class GT_FluidStack extends FluidStack {
     	this(aFluid.getFluid(), aFluid.amount);
     }
     
-    public static void fixAllThoseFuckingFluidIDs() {
+    public static synchronized void fixAllThoseFuckingFluidIDs() {
     	if(ForgeVersion.getBuildVersion()<1355){
     	while(lock){try {Thread.sleep(1);} catch (InterruptedException e) {}}
     	lock=true;