diff --git a/msgpack-core/src/main/java/org/msgpack/core/buffer/ArrayBufferOutput.java b/msgpack-core/src/main/java/org/msgpack/core/buffer/ArrayBufferOutput.java
index cd31e6453..955d48ad4 100644
--- a/msgpack-core/src/main/java/org/msgpack/core/buffer/ArrayBufferOutput.java
+++ b/msgpack-core/src/main/java/org/msgpack/core/buffer/ArrayBufferOutput.java
@@ -119,13 +119,13 @@ public void clear()
     }
 
     @Override
-    public MessageBuffer next(int mimimumSize)
+    public MessageBuffer next(int minimumSize)
     {
-        if (lastBuffer != null && lastBuffer.size() > mimimumSize) {
+        if (lastBuffer != null && lastBuffer.size() > minimumSize) {
             return lastBuffer;
         }
         else {
-            int size = Math.max(bufferSize, mimimumSize);
+            int size = Math.max(bufferSize, minimumSize);
             MessageBuffer buffer = MessageBuffer.allocate(size);
             lastBuffer = buffer;
             return buffer;
diff --git a/msgpack-core/src/main/java/org/msgpack/core/buffer/ChannelBufferOutput.java b/msgpack-core/src/main/java/org/msgpack/core/buffer/ChannelBufferOutput.java
index 32969f29a..155c86b12 100644
--- a/msgpack-core/src/main/java/org/msgpack/core/buffer/ChannelBufferOutput.java
+++ b/msgpack-core/src/main/java/org/msgpack/core/buffer/ChannelBufferOutput.java
@@ -56,11 +56,11 @@ public WritableByteChannel reset(WritableByteChannel channel)
     }
 
     @Override
-    public MessageBuffer next(int mimimumSize)
+    public MessageBuffer next(int minimumSize)
             throws IOException
     {
-        if (buffer.size() < mimimumSize) {
-            buffer = MessageBuffer.allocate(mimimumSize);
+        if (buffer.size() < minimumSize) {
+            buffer = MessageBuffer.allocate(minimumSize);
         }
         return buffer;
     }
diff --git a/msgpack-core/src/main/java/org/msgpack/core/buffer/OutputStreamBufferOutput.java b/msgpack-core/src/main/java/org/msgpack/core/buffer/OutputStreamBufferOutput.java
index 08fd3960b..cbba1333e 100644
--- a/msgpack-core/src/main/java/org/msgpack/core/buffer/OutputStreamBufferOutput.java
+++ b/msgpack-core/src/main/java/org/msgpack/core/buffer/OutputStreamBufferOutput.java
@@ -55,11 +55,11 @@ public OutputStream reset(OutputStream out)
     }
 
     @Override
-    public MessageBuffer next(int mimimumSize)
+    public MessageBuffer next(int minimumSize)
             throws IOException
     {
-        if (buffer.size() < mimimumSize) {
-            buffer = MessageBuffer.allocate(mimimumSize);
+        if (buffer.size() < minimumSize) {
+            buffer = MessageBuffer.allocate(minimumSize);
         }
         return buffer;
     }