diff --git a/src/include/miscadmin.h b/src/include/miscadmin.h
index 14fa127..18bc8a7 100644
*** a/src/include/miscadmin.h
--- b/src/include/miscadmin.h
*************** extern void ProcessInterrupts(void);
*** 98,113 ****
  
  #define CHECK_FOR_INTERRUPTS() \
  do { \
! 	if (InterruptPending) \
  		ProcessInterrupts(); \
  } while(0)
  #else							/* WIN32 */
  
  #define CHECK_FOR_INTERRUPTS() \
  do { \
! 	if (UNBLOCKED_SIGNAL_QUEUE()) \
  		pgwin32_dispatch_queued_signals(); \
! 	if (InterruptPending) \
  		ProcessInterrupts(); \
  } while(0)
  #endif							/* WIN32 */
--- 98,113 ----
  
  #define CHECK_FOR_INTERRUPTS() \
  do { \
! 	if (unlikely(InterruptPending)) \
  		ProcessInterrupts(); \
  } while(0)
  #else							/* WIN32 */
  
  #define CHECK_FOR_INTERRUPTS() \
  do { \
! 	if (unlikely(UNBLOCKED_SIGNAL_QUEUE())) \
  		pgwin32_dispatch_queued_signals(); \
! 	if (unlikely(InterruptPending)) \
  		ProcessInterrupts(); \
  } while(0)
  #endif							/* WIN32 */