diff --git a/utils/wvtask.cc b/utils/wvtask.cc

index 9b0444c..628dc45 100644

--- a/utils/wvtask.cc

+++ b/utils/wvtask.cc

@@ -430,7 +430,7 @@ void WvTaskMan::_stackmaster()

 	    total = (val+1) * (size_t)1024;

             if (!use_shared_stack())

-                total = 1024; // enough to save the do_task stack frame

+                total = 2048; // enough to save the do_task stack frame

 	    // set up a stack frame for the new task.  This runs once

 	    // per get_stack.