diff --git a/get_global_id.c b/get_global_id.c
index e06349a..0102c0b 100644
--- a/get_global_id.c
+++ b/get_global_id.c
@@ -34,7 +34,7 @@ int main(int argc, char ** argv)
 
    if(!clSimpleEnqueueNDRangeKernel(context.command_queue,
                               context.kernel,
-                              1, &global_work_size, &global_work_size)) {
+                              1, &global_work_size, &local_work_size)) {
       return EXIT_FAILURE;
    }