diff --git a/src/main/scala/org/xcit/nback/generators/SkewedSequenceGenerator.scala b/src/main/scala/org/xcit/nback/generators/SkewedSequenceGenerator.scala
index fd99caa..a54b5a4 100644
--- a/src/main/scala/org/xcit/nback/generators/SkewedSequenceGenerator.scala
+++ b/src/main/scala/org/xcit/nback/generators/SkewedSequenceGenerator.scala
@@ -50,7 +50,7 @@
 
       // 2. For each trial, generate a random type (L1, L2, T, or D)
       // 3. Based on the generated type, generate the item and append it to the buffer
-      buffer += {nextTrialType() match {
+      buffer += {nextTrialType(trials-trial) match {
         case TrialType.LURE_BEFORE_TARGET if buffer.length > N + 1 =>
           buffer(buffer.length - (N + 2))
         case TrialType.TARGET  if buffer.length > N =>
@@ -68,10 +68,10 @@
 
   /**
     * Defines next trial types randomly. It returns L1, L2, T, or D (Ralph2014).
-    * Random range: [1, trials] (both are inclusive based on ralph2014!)
+    * Random range: [1, remaining_trials] (both are inclusive)
     * @return a trial type to be used to generate an item for current trial
     */
-  private def nextTrialType(): TrialType.Value = { Random.nextInt(trials + 1) + 1 } match {
+  private def nextTrialType(remainingTrials: Int): TrialType.Value = { Random.nextInt(remainingTrials + 1) + 1 } match {
     case rnd if rnd <= L1 =>
       L1 -= 1
       TrialType.LURE_BEFORE_TARGET