diff --git a/BizHawk.Emulation/Computers/Commodore64/C64.Core.cs b/BizHawk.Emulation/Computers/Commodore64/C64.Core.cs
index a00d12c398..842aa555a0 100644
--- a/BizHawk.Emulation/Computers/Commodore64/C64.Core.cs
+++ b/BizHawk.Emulation/Computers/Commodore64/C64.Core.cs
@@ -234,7 +234,7 @@ namespace BizHawk.Emulation.Computers.Commodore64
 			ser.EndSection();
 
 			ser.BeginSection("cart");
-
+			cartPort.SyncState(ser);
 			ser.EndSection();
 		}
 	}