diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/EditSession.java b/worldedit-core/src/main/java/com/sk89q/worldedit/EditSession.java
index abb4f4909..8698a7674 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/EditSession.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/EditSession.java
@@ -59,6 +59,7 @@ import com.sk89q.worldedit.history.changeset.ChangeSet;
 import com.sk89q.worldedit.internal.expression.Expression;
 import com.sk89q.worldedit.internal.expression.ExpressionException;
 import com.sk89q.worldedit.internal.expression.runtime.RValue;
+import com.sk89q.worldedit.math.MathUtils;
 import com.sk89q.worldedit.math.interpolation.Interpolation;
 import com.sk89q.worldedit.math.interpolation.KochanekBartelsInterpolation;
 import com.sk89q.worldedit.math.interpolation.Node;
@@ -963,8 +964,9 @@ public class EditSession implements Extent {
         Vector center = region.getCenter();
         Region centerRegion = new CuboidRegion(
                 getWorld(), // Causes clamping of Y range
-                new Vector((int) center.getX(), (int) center.getY(), (int) center.getZ()),
-                center.toBlockVector());
+                new Vector(((int) center.getX()), ((int) center.getY()), ((int) center.getZ())),
+                new Vector(MathUtils.roundHalfUp(center.getX()),
+                            center.getY(), MathUtils.roundHalfUp(center.getZ())));
         return setBlocks(centerRegion, pattern);
     }
 
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/math/MathUtils.java b/worldedit-core/src/main/java/com/sk89q/worldedit/math/MathUtils.java
index 743b6e5da..bb8541cb2 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/math/MathUtils.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/math/MathUtils.java
@@ -105,4 +105,16 @@ public final class MathUtils {
         return Math.sin(Math.toRadians(degrees));
     }
 
+    /**
+     * Returns the rounded double of the given value, rounding to the
+     * nearest integer value away from zero on ties.
+     *
+     * This behavior is the same as {@link java.math.RoundingMode#HALF_UP}.
+     *
+     * @param value the value
+     * @return the rounded value
+     */
+    public static double roundHalfUp(double value) {
+        return Math.signum(value) * Math.round(Math.abs(value));
+    }
 }