diff --git a/src/Native/NativeShare.php b/src/Native/NativeShare.php
index bc734e3..93b9cf4 100644
--- a/src/Native/NativeShare.php
+++ b/src/Native/NativeShare.php
@@ -265,17 +265,24 @@ class NativeShare extends AbstractShare {
 
 	/**
 	 * Open a writeable stream to a remote file
-	 * Note: This method will truncate the file to 0bytes first
+	 * Note: The default will truncate the file to 0 bytes.
 	 *
 	 * @param string $source
+	 * @param bool $truncate
 	 * @return resource a writeable stream
 	 *
 	 * @throws \Icewind\SMB\Exception\NotFoundException
 	 * @throws \Icewind\SMB\Exception\InvalidTypeException
 	 */
-	public function write($source) {
+	public function write($source, $truncate=true) {
 		$url = $this->buildUrl($source);
-		$handle = $this->getState()->create($url);
+
+		if($truncate === true) {
+			$handle = $this->getState()->create($url);
+		} else {
+			$handle = $this->getState()->open($url, 'c');
+		}
+
 		return NativeWriteStream::wrap($this->getState(), $handle, 'w', $url);
 	}
 
diff --git a/src/Wrapped/Share.php b/src/Wrapped/Share.php
index 4a21e99..dec9c31 100644
--- a/src/Wrapped/Share.php
+++ b/src/Wrapped/Share.php
@@ -326,12 +326,18 @@ class Share extends AbstractShare {
 	 * Open a writable stream to a remote file
 	 *
 	 * @param string $target
+	 * @param bool $truncate
 	 * @return resource a write only stream to upload a remote file
 	 *
+	 * @throws \Icewind\SMB\Exception\DependencyException
 	 * @throws \Icewind\SMB\Exception\NotFoundException
 	 * @throws \Icewind\SMB\Exception\InvalidTypeException
 	 */
-	public function write($target) {
+	public function write($target, $truncate=true) {
+		if($truncate === false) {
+			throw new DependencyException('truncate required by smbclient, use php-libsmbclient instead');
+		}
+
 		$target = $this->escapePath($target);
 		// since returned stream is closed by the caller we need to create a new instance
 		// since we can't re-use the same file descriptor over multiple calls