diff --git a/src/main/java/com/thegrizzlylabs/sardineandroid/Sardine.java b/src/main/java/com/thegrizzlylabs/sardineandroid/Sardine.java
index 1a6fc5d..97ea98e 100755
--- a/src/main/java/com/thegrizzlylabs/sardineandroid/Sardine.java
+++ b/src/main/java/com/thegrizzlylabs/sardineandroid/Sardine.java
@@ -315,6 +315,16 @@ public interface Sardine
 	 */
 	void move(String sourceUrl, String destinationUrl, boolean overwrite) throws IOException;
 
+	/**
+	 * Move a url to from source to destination using WebDAV <code>MOVE</code>.
+	 *
+	 * @param sourceUrl	  Path to the resource including protocol and hostname
+	 * @param destinationUrl Path to the resource including protocol and hostname
+	 * @param overwrite {@code true} to overwrite if the destination exists, {@code false} otherwise.
+	 * @throws IOException I/O error or HTTP response validation failure
+	 */
+	void move(String sourceUrl, String destinationUrl, boolean overwrite, String lockTocken) throws IOException;
+
 	/**
 	 * Copy a url from source to destination using WebDAV <code>COPY</code>. Assumes overwrite.
 	 *
diff --git a/src/main/java/com/thegrizzlylabs/sardineandroid/impl/OkHttpSardine.java b/src/main/java/com/thegrizzlylabs/sardineandroid/impl/OkHttpSardine.java
index dac1a4e..d95c32b 100644
--- a/src/main/java/com/thegrizzlylabs/sardineandroid/impl/OkHttpSardine.java
+++ b/src/main/java/com/thegrizzlylabs/sardineandroid/impl/OkHttpSardine.java
@@ -349,12 +349,20 @@ public void move(String sourceUrl, String destinationUrl) throws IOException {
 
     @Override
     public void move(String sourceUrl, String destinationUrl, boolean overwrite) throws IOException {
-        Request request = new Request.Builder()
+        move(sourceUrl, destinationUrl, overwrite, null);
+    }
+
+    @Override
+    public void move(String sourceUrl, String destinationUrl, boolean overwrite, String lockToken) throws IOException {
+        Request.Builder buildsr = new Request.Builder()
                 .url(sourceUrl)
                 .method("MOVE", null)
                 .header("DESTINATION", URI.create(destinationUrl).toASCIIString())
-                .header("OVERWRITE", overwrite ? "T" : "F")
-                .build();
+                .header("OVERWRITE", overwrite ? "T" : "F");
+        if (lockToken != null) {
+            buildsr.header("If", "<" + destinationUrl + "> (<" + lockToken + ">)");
+        }
+        Request request = buildsr.build();
         execute(request);
     }