diff --git a/SYCLStream.cpp b/SYCLStream.cpp
index d039d70..d4a2fd0 100644
--- a/SYCLStream.cpp
+++ b/SYCLStream.cpp
@@ -11,7 +11,7 @@
 
 using namespace cl::sycl;
 
-#define WGSIZE 64
+#define WGSIZE 256
 
 // Cache list of devices
 bool cached = false;