diff --git a/src/main/java/mods/betterfoliage/client/resource/BufferedImageResource.java b/src/main/java/mods/betterfoliage/client/resource/BufferedImageResource.java
index 5a92662..c6cb1ab 100644
--- a/src/main/java/mods/betterfoliage/client/resource/BufferedImageResource.java
+++ b/src/main/java/mods/betterfoliage/client/resource/BufferedImageResource.java
@@ -8,9 +8,13 @@ import java.io.InputStream;
 
 import javax.imageio.ImageIO;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
 import net.minecraft.client.resources.IResource;
 import net.minecraft.client.resources.data.IMetadataSection;
 
+@SideOnly(Side.CLIENT)
 public class BufferedImageResource implements IResource {
 
 	/** Raw PNG data*/
diff --git a/src/main/java/mods/betterfoliage/client/resource/LeafGenerator.java b/src/main/java/mods/betterfoliage/client/resource/LeafGenerator.java
index 2b03ba1..68787b6 100644
--- a/src/main/java/mods/betterfoliage/client/resource/LeafGenerator.java
+++ b/src/main/java/mods/betterfoliage/client/resource/LeafGenerator.java
@@ -13,7 +13,10 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.client.event.TextureStitchEvent.Post;
 import cpw.mods.fml.common.eventhandler.SubscribeEvent;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 
+@SideOnly(Side.CLIENT)
 public class LeafGenerator extends LeafGeneratorBase {
 
 	/** Name of the default alpha mask to use */
diff --git a/src/main/java/mods/betterfoliage/client/resource/LeafGeneratorBase.java b/src/main/java/mods/betterfoliage/client/resource/LeafGeneratorBase.java
index de1a0cf..84bd004 100644
--- a/src/main/java/mods/betterfoliage/client/resource/LeafGeneratorBase.java
+++ b/src/main/java/mods/betterfoliage/client/resource/LeafGeneratorBase.java
@@ -13,7 +13,10 @@ import net.minecraft.client.resources.IResourceManager;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.client.event.TextureStitchEvent.Pre;
 import cpw.mods.fml.common.eventhandler.SubscribeEvent;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 
+@SideOnly(Side.CLIENT)
 public abstract class LeafGeneratorBase extends BlockTextureGenerator {
 
 	public static class TextureGenerationException extends Exception {
diff --git a/src/main/java/mods/betterfoliage/client/resource/LeafTextureEnumerator.java b/src/main/java/mods/betterfoliage/client/resource/LeafTextureEnumerator.java
index b746c94..bdee44a 100644
--- a/src/main/java/mods/betterfoliage/client/resource/LeafTextureEnumerator.java
+++ b/src/main/java/mods/betterfoliage/client/resource/LeafTextureEnumerator.java
@@ -20,7 +20,10 @@ import com.google.common.collect.Sets;
 
 import cpw.mods.fml.common.eventhandler.Event;
 import cpw.mods.fml.common.eventhandler.SubscribeEvent;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 
+@SideOnly(Side.CLIENT)
 public class LeafTextureEnumerator implements IIconRegister {
 
 	public static class LeafTextureFoundEvent extends Event {
diff --git a/src/main/java/mods/betterfoliage/client/resource/ReedGenerator.java b/src/main/java/mods/betterfoliage/client/resource/ReedGenerator.java
index af85ec7..d61ba79 100644
--- a/src/main/java/mods/betterfoliage/client/resource/ReedGenerator.java
+++ b/src/main/java/mods/betterfoliage/client/resource/ReedGenerator.java
@@ -6,11 +6,15 @@ import java.io.IOException;
 
 import javax.imageio.ImageIO;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.resources.IResource;
 import net.minecraft.client.resources.IResourceManager;
 import net.minecraft.util.ResourceLocation;
 
+@SideOnly(Side.CLIENT)
 public class ReedGenerator extends BlockTextureGenerator {
 
 	public boolean isBottom;
diff --git a/src/main/java/mods/betterfoliage/client/resource/ShortGrassGenerator.java b/src/main/java/mods/betterfoliage/client/resource/ShortGrassGenerator.java
index 5131fca..9a8d736 100644
--- a/src/main/java/mods/betterfoliage/client/resource/ShortGrassGenerator.java
+++ b/src/main/java/mods/betterfoliage/client/resource/ShortGrassGenerator.java
@@ -6,12 +6,16 @@ import java.io.IOException;
 
 import javax.imageio.ImageIO;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
 import mods.betterfoliage.client.ShadersModIntegration;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.resources.IResource;
 import net.minecraft.client.resources.IResourceManager;
 import net.minecraft.util.ResourceLocation;
 
+@SideOnly(Side.CLIENT)
 public class ShortGrassGenerator extends BlockTextureGenerator {
 
 	protected boolean isSnowed = false;