diff --git a/cpuexec.cpp b/cpuexec.cpp
index cdcc2a91..0b4c58ec 100644
--- a/cpuexec.cpp
+++ b/cpuexec.cpp
@@ -239,6 +239,8 @@ void S9xMainLoop (void)
 				{
 					CPU.WaitingForInterrupt = FALSE;
 					Registers.PCw++;
+					CPU.Cycles += ONE_CYCLE * 2;
+					S9xDoHEventProcessing();
 				}
 
 				S9xUpdateIRQPositions();
diff --git a/ppu.cpp b/ppu.cpp
index 9cab99f1..9640f561 100644
--- a/ppu.cpp
+++ b/ppu.cpp
@@ -336,7 +336,7 @@ void S9xUpdateIRQPositions (void)
 		if (CPU.V_Counter == PPU.VTimerPosition)
 			Timings.NextIRQTimer = 0;
 		else
-			Timings.NextIRQTimer = CyclesUntilNext (ONE_DOT_CYCLE + Timings.IRQTriggerCycles, PPU.VTimerPosition);
+			Timings.NextIRQTimer = CyclesUntilNext (Timings.IRQTriggerCycles, PPU.VTimerPosition);
 	}
 	else
 	{