diff --git a/build.gradle b/build.gradle
index c3844a7e..acdd1762 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,7 +11,7 @@ buildscript {
 apply plugin: 'net.minecraftforge.gradle.forge'
 apply plugin: 'maven'
 
-version = "a4"
+version = "a5"
 group = "de.ellpeck.naturesaura"
 archivesBaseName = "NaturesAura"
 
diff --git a/src/main/java/de/ellpeck/naturesaura/Helper.java b/src/main/java/de/ellpeck/naturesaura/Helper.java
index 01bd0d30..891f9fcb 100644
--- a/src/main/java/de/ellpeck/naturesaura/Helper.java
+++ b/src/main/java/de/ellpeck/naturesaura/Helper.java
@@ -71,7 +71,6 @@ public final class Helper {
             return !provider.provideChunk(x, z).isEmpty();
     }
 
-    @SideOnly(Side.CLIENT)
     public static int blendColors(int c1, int c2, float ratio) {
         int a = (int) ((c1 >> 24 & 0xFF) * ratio + (c2 >> 24 & 0xFF) * (1 - ratio));
         int r = (int) ((c1 >> 16 & 0xFF) * ratio + (c2 >> 16 & 0xFF) * (1 - ratio));