diff --git a/openmp/runtime/src/kmp_tasking.cpp b/openmp/runtime/src/kmp_tasking.cpp
--- a/openmp/runtime/src/kmp_tasking.cpp
+++ b/openmp/runtime/src/kmp_tasking.cpp
@@ -711,6 +711,8 @@
       ompt_frame_runtime | ompt_frame_framepointer;
   task->ompt_task_info.frame.enter_frame_flags =
       ompt_frame_runtime | ompt_frame_framepointer;
+  task->ompt_task_info.dispatch_chunk.start = 0;
+  task->ompt_task_info.dispatch_chunk.iterations = 0;
 }
 
 // __ompt_task_start:
diff --git a/openmp/runtime/src/ompt-internal.h b/openmp/runtime/src/ompt-internal.h
--- a/openmp/runtime/src/ompt-internal.h
+++ b/openmp/runtime/src/ompt-internal.h
@@ -57,7 +57,7 @@
   ompt_data_t task_data;
   struct kmp_taskdata *scheduling_parent;
   int thread_num;
-  ompt_dispatch_chunk_t dispatch_chunk = {0, 0};
+  ompt_dispatch_chunk_t dispatch_chunk;
 } ompt_task_info_t;
 
 typedef struct {