diff --git a/common/rfb/SDesktop.h b/common/rfb/SDesktop.h
index 546506a..833762e 100644
--- a/common/rfb/SDesktop.h
+++ b/common/rfb/SDesktop.h
@@ -92,12 +92,16 @@
   public:
     SStaticDesktop(const Point& size) : server(0), buffer(0) {
       PixelFormat pf;
+      const rdr::U8 black[4] = { 0, 0, 0, 0 };
       buffer = new ManagedPixelBuffer(pf, size.x, size.y);
-      if (buffer) buffer->fillRect(buffer->getRect(), 0);
+      if (buffer)
+        buffer->fillRect(buffer->getRect(), black);
     }
     SStaticDesktop(const Point& size, const PixelFormat& pf) : buffer(0) {
+      const rdr::U8 black[4] = { 0, 0, 0, 0 };
       buffer = new ManagedPixelBuffer(pf, size.x, size.y);
-      if (buffer) buffer->fillRect(buffer->getRect(), 0);
+      if (buffer)
+        buffer->fillRect(buffer->getRect(), black);
     }
     virtual ~SStaticDesktop() {
       if (buffer) delete buffer;