diff --git a/kernel/trunk/core/dll.inc b/kernel/trunk/core/dll.inc
index 6d65b40d70..84eb4d5978 100644
--- a/kernel/trunk/core/dll.inc
+++ b/kernel/trunk/core/dll.inc
@@ -165,12 +165,14 @@ align 16
 	   jnz   @f
 	   push  eax
 	   call  [irq14_func]
+	   mov	[check_idle_semaphore],5
 	   pop   eax
 @@:
 	   cmp   al, 15
 	   jnz   @f
 	   push  eax
 	   call  [irq15_func]
+	   mov	[check_idle_semaphore],5
 	   pop   eax
 @@: