diff --git a/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakData.java b/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakData.java
index dba65b5d..974479ec 100644
--- a/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakData.java
+++ b/src/fr/neatmonster/nocheatplus/checks/blockbreak/BlockBreakData.java
@@ -70,7 +70,7 @@ public class BlockBreakData extends ACheckData {
     public double  fastBreakVL;
     public double  noSwingVL;
     public double  reachVL;
-    public double  wrongBlockVL;
+    public final ActionFrequency  wrongBlockVL;
     
     // Shared data.
 	public int clickedX;
@@ -94,6 +94,7 @@ public class BlockBreakData extends ACheckData {
     public BlockBreakData(BlockBreakConfig cc) {
 		fastBreakBuffer = cc.fastBreakBuffer;
 		fastBreakPenalties = new ActionFrequency(cc.fastBreakBuckets, cc.fastBreakBucketDur);
+		wrongBlockVL = new ActionFrequency(6, 20000);
 	}
 
 }
diff --git a/src/fr/neatmonster/nocheatplus/checks/blockbreak/WrongBlock.java b/src/fr/neatmonster/nocheatplus/checks/blockbreak/WrongBlock.java
index 91ef6cff..3f790a18 100644
--- a/src/fr/neatmonster/nocheatplus/checks/blockbreak/WrongBlock.java
+++ b/src/fr/neatmonster/nocheatplus/checks/blockbreak/WrongBlock.java
@@ -19,10 +19,11 @@ public class WrongBlock extends Check {
         
         boolean cancel = false;
         if (data.clickedX != block.getX() || data.clickedZ != block.getZ() || data.clickedY != block.getY()){
-        	data.wrongBlockVL += 1D;
-        	if (executeActions(player, data.wrongBlockVL, 1D, cc.wrongBlockActions))
+        	final long now = System.currentTimeMillis();
+        	data.wrongBlockVL.add(now, 1f);
+        	if (executeActions(player, data.wrongBlockVL.getScore(0.9f), 1D, cc.wrongBlockActions))
         		cancel = true;
-        	if (Improbable.check(player, 5.0f, System.currentTimeMillis()))
+        	if (Improbable.check(player, 5.0f, now))
         		cancel = true;
         }