diff --git a/common/rfb/TightDecoder.cxx b/common/rfb/TightDecoder.cxx
index 3a1254a..cc786f5 100644
--- a/common/rfb/TightDecoder.cxx
+++ b/common/rfb/TightDecoder.cxx
@@ -364,7 +364,7 @@
   if (directDecode)
     outbuf = pb->getBufferRW(r, &stride);
   else {
-    outbuf = new rdr::U8[r.area() * pf.bpp/8];
+    outbuf = new rdr::U8[r.area() * (pf.bpp/8)];
     stride = r.width();
   }