diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/regions/selector/CylinderRegionSelector.java b/worldedit-core/src/main/java/com/sk89q/worldedit/regions/selector/CylinderRegionSelector.java
index 689cd3701..0798b06e6 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/regions/selector/CylinderRegionSelector.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/regions/selector/CylinderRegionSelector.java
@@ -254,6 +254,8 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
     @Override
     public void clear() {
         region = new CylinderRegion(region.getWorld());
+        selectedCenter = false;
+        selectedRadius = false;
     }
 
     @Override
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/regions/selector/EllipsoidRegionSelector.java b/worldedit-core/src/main/java/com/sk89q/worldedit/regions/selector/EllipsoidRegionSelector.java
index 02d570969..1f7c8a420 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/regions/selector/EllipsoidRegionSelector.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/regions/selector/EllipsoidRegionSelector.java
@@ -227,6 +227,8 @@ public class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
     public void clear() {
         region.setCenter(BlockVector3.ZERO);
         region.setRadius(Vector3.ZERO);
+        started = false;
+        selectedRadius = false;
     }
 
     @Override