diff --git a/extensions/network/WebSocket.cpp b/extensions/network/WebSocket.cpp
index 93ecea4157..b12f5d3922 100644
--- a/extensions/network/WebSocket.cpp
+++ b/extensions/network/WebSocket.cpp
@@ -21,6 +21,10 @@
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
+
+"[WebSocket module] is based in part on the work of the libwebsockets  project
+(http://libwebsockets.org)"
+
  ****************************************************************************/
 
 #include "WebSocket.h"
diff --git a/extensions/network/WebSocket.h b/extensions/network/WebSocket.h
index 068f341d60..e764e16704 100644
--- a/extensions/network/WebSocket.h
+++ b/extensions/network/WebSocket.h
@@ -21,6 +21,10 @@
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
+
+"[WebSocket module] is based in part on the work of the libwebsockets  project
+(http://libwebsockets.org)"
+
  ****************************************************************************/
 
 #ifndef __CC_WEBSOCKET_H__