--- a/net/minecraft/server/EntityGhast.java
+++ b/net/minecraft/server/EntityGhast.java
@@ -167,7 +167,8 @@
                     world.a((EntityHuman) null, 1016, new BlockPosition(this.ghast), 0);
                     EntityLargeFireball entitylargefireball = new EntityLargeFireball(world, this.ghast, d2, d3, d4);
 
-                    entitylargefireball.yield = this.ghast.getPower();
+                    // CraftBukkit - set bukkitYield when setting explosionpower
+                    entitylargefireball.bukkitYield = entitylargefireball.yield = this.ghast.getPower();
                     entitylargefireball.locX = this.ghast.locX + vec3d.x * 4.0D;
                     entitylargefireball.locY = this.ghast.locY + (double) (this.ghast.getHeight() / 2.0F) + 0.5D;
                     entitylargefireball.locZ = this.ghast.locZ + vec3d.z * 4.0D;