diff --git a/BizHawk.Emulation.Cores/CPUs/Z80A/Z80A.cs b/BizHawk.Emulation.Cores/CPUs/Z80A/Z80A.cs
index d8743a7eab..6cb1a36617 100644
--- a/BizHawk.Emulation.Cores/CPUs/Z80A/Z80A.cs
+++ b/BizHawk.Emulation.Cores/CPUs/Z80A/Z80A.cs
@@ -89,6 +89,7 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
 			ResetInterrupts();
 			TotalExecutedCycles = 0;
 			cur_instr = new ushort[] { OP };
+			instr_pntr = 0;
 			NO_prefix = true;
 		}
 
@@ -684,4 +685,4 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
 			ser.EndSection();
 		}
 	}
-}
\ No newline at end of file
+}