diff --git a/src/main/java/com/raoulvdberge/refinedstorage/util/RenderUtils.java b/src/main/java/com/raoulvdberge/refinedstorage/util/RenderUtils.java
index dbd182e12..766387e1b 100644
--- a/src/main/java/com/raoulvdberge/refinedstorage/util/RenderUtils.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/util/RenderUtils.java
@@ -28,6 +28,8 @@ import net.minecraftforge.common.model.TRSRTransformation;
 import net.minecraftforge.fluids.Fluid;
 import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.fml.client.config.GuiUtils;
+import net.minecraftforge.fml.relauncher.Side;
+import net.minecraftforge.fml.relauncher.SideOnly;
 
 import javax.annotation.Nonnull;
 import javax.vecmath.Matrix4f;
@@ -466,6 +468,7 @@ public final class RenderUtils {
         }
     }
 
+    @SideOnly(Side.CLIENT)
     public static List<String> getItemTooltip(ItemStack stack) {
         List<String> lines = stack.getTooltip(Minecraft.getMinecraft().player, Minecraft.getMinecraft().gameSettings.advancedItemTooltips ? ITooltipFlag.TooltipFlags.ADVANCED : ITooltipFlag.TooltipFlags.NORMAL);