diff --git a/OSBindings/Mac/Clock SignalTests/65816ComparativeTests.mm b/OSBindings/Mac/Clock SignalTests/65816ComparativeTests.mm
index dd0d82e25..f05b7013f 100644
--- a/OSBindings/Mac/Clock SignalTests/65816ComparativeTests.mm	
+++ b/OSBindings/Mac/Clock SignalTests/65816ComparativeTests.mm	
@@ -227,7 +227,7 @@ void print_ram(FILE *file, const std::unordered_map<uint32_t, uint8_t> &data) {
 					case BusOperation::Read:					read = vda = true;			break;
 					case BusOperation::ReadOpcode:				read = vda = vpa = true;	break;
 					case BusOperation::ReadProgram:				read = vpa = true;			break;
-					case BusOperation::ReadVector:				read = vpb = true;			break;
+					case BusOperation::ReadVector:				read = vpb = vda = true;	break;
 					case BusOperation::InternalOperationRead:	read = true;				break;
 
 					case BusOperation::Write:					vda = true;					break;
diff --git a/Processors/6502Esque/6502Esque.hpp b/Processors/6502Esque/6502Esque.hpp
index 8f5c75589..84edc52d2 100644
--- a/Processors/6502Esque/6502Esque.hpp
+++ b/Processors/6502Esque/6502Esque.hpp
@@ -77,7 +77,7 @@ enum BusOperation {
 	/// 65816: indicates that a read was signalled with VPA.
 	ReadProgram,
 	/// 6502: never signalled.
-	/// 65816: indicates that a read was signalled with VPB.
+	/// 65816: indicates that a read was signalled with VPB and VDA.
 	ReadVector,
 	/// 6502: never signalled.
 	/// 65816: indicates that a read was signalled, but neither VDA nor VPA were active.