diff --git a/jctools-core/src/main/java/org/jctools/queues/SpscGrowableArrayQueue.java b/jctools-core/src/main/java/org/jctools/queues/SpscGrowableArrayQueue.java
index 478c10f7..8be9b580 100644
--- a/jctools-core/src/main/java/org/jctools/queues/SpscGrowableArrayQueue.java
+++ b/jctools-core/src/main/java/org/jctools/queues/SpscGrowableArrayQueue.java
@@ -114,7 +114,7 @@ final boolean offerColdPath(
                     long currConsumerIndex = lvConsumerIndex();
                     // use lookAheadStep to store the consumer distance from final buffer
                     this.lookAheadStep = -(index - currConsumerIndex);
-                    producerBufferLimit = currConsumerIndex + maxCapacity - 1;
+                    producerBufferLimit = currConsumerIndex + maxCapacity;
                 }
                 else
                 {
diff --git a/jctools-core/src/main/java/org/jctools/queues/atomic/SpscGrowableAtomicArrayQueue.java b/jctools-core/src/main/java/org/jctools/queues/atomic/SpscGrowableAtomicArrayQueue.java
index 89a8052e..323d045e 100644
--- a/jctools-core/src/main/java/org/jctools/queues/atomic/SpscGrowableAtomicArrayQueue.java
+++ b/jctools-core/src/main/java/org/jctools/queues/atomic/SpscGrowableAtomicArrayQueue.java
@@ -106,7 +106,7 @@ final boolean offerColdPath(final AtomicReferenceArray<E> buffer, final long mas
                     long currConsumerIndex = lvConsumerIndex();
                     // use lookAheadStep to store the consumer distance from final buffer
                     this.lookAheadStep = -(index - currConsumerIndex);
-                    producerBufferLimit = currConsumerIndex + maxCapacity - 1;
+                    producerBufferLimit = currConsumerIndex + maxCapacity;
                 } else {
                     producerBufferLimit = index + producerMask - 1;
                     adjustLookAheadStep(newCapacity);