diff --git a/cpukit/score/src/debugisthreaddispatchingallowed.c b/cpukit/score/src/debugisthreaddispatchingallowed.c
index 523fd11dbc..2f0c7f07e2 100644
--- a/cpukit/score/src/debugisthreaddispatchingallowed.c
+++ b/cpukit/score/src/debugisthreaddispatchingallowed.c
@@ -27,7 +27,7 @@
     Per_CPU_Control *per_cpu;
 
     _ISR_Disable_without_giant( level );
-    per_cpu = _Per_CPU_Get_by_index( _SMP_Get_current_processor() );
+    per_cpu = _Per_CPU_Get_snapshot();
     dispatch_allowed = per_cpu->thread_dispatch_disable_level == 0;
     _ISR_Enable_without_giant( level );