diff --git a/tv/hdmi/connection/aidl/default/HdmiConnectionMock.cpp b/tv/hdmi/connection/aidl/default/HdmiConnectionMock.cpp
index db9f4c1..2bb2c78 100644
--- a/tv/hdmi/connection/aidl/default/HdmiConnectionMock.cpp
+++ b/tv/hdmi/connection/aidl/default/HdmiConnectionMock.cpp
@@ -44,7 +44,7 @@
 ScopedAStatus HdmiConnectionMock::isConnected(int32_t portId, bool* _aidl_return) {
     // Maintain port connection status and update on hotplug event
     if (portId <= mTotalPorts && portId >= 1) {
-        *_aidl_return = mPortConnectionStatus[portId];
+        *_aidl_return = mPortConnectionStatus.at(portId - 1);
     } else {
         *_aidl_return = false;
     }
@@ -130,10 +130,10 @@
 
     ALOGD("[halimp_aidl] hot plug port id %x, is connected %x", (msgBuf[0] & 0xf),
           (msgBuf[3] & 0xf));
-    mPortConnectionStatus[portId] = connected;
-    if (mPortInfos[portId].type == HdmiPortType::OUTPUT) {
+    mPortConnectionStatus.at(portId - 1) = connected;
+    if (mPortInfos.at(portId - 1).type == HdmiPortType::OUTPUT) {
         mPhysicalAddress = (connected ? 0xffff : ((msgBuf[1] << 8) | (msgBuf[2])));
-        mPortInfos[portId].physicalAddress = mPhysicalAddress;
+        mPortInfos.at(portId - 1).physicalAddress = mPhysicalAddress;
         ALOGD("[halimp_aidl] hot plug physical address %x", mPhysicalAddress);
     }
 
diff --git a/tv/hdmi/earc/aidl/default/EArcMock.cpp b/tv/hdmi/earc/aidl/default/EArcMock.cpp
index 99a845e..a3ccabf 100644
--- a/tv/hdmi/earc/aidl/default/EArcMock.cpp
+++ b/tv/hdmi/earc/aidl/default/EArcMock.cpp
@@ -54,7 +54,7 @@
 ScopedAStatus EArcMock::getState(int32_t portId, IEArcStatus* _aidl_return) {
     // Maintain port connection status and update on hotplug event
     if (portId <= mTotalPorts && portId >= 1) {
-        *_aidl_return = mPortStatus[portId];
+        *_aidl_return = mPortStatus.at(portId - 1);
     } else {
         return ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
     }
@@ -65,7 +65,7 @@
 ScopedAStatus EArcMock::getLastReportedAudioCapabilities(int32_t portId,
                                                          std::vector<uint8_t>* _aidl_return) {
     if (portId <= mTotalPorts && portId >= 1) {
-        *_aidl_return = mCapabilities[portId];
+        *_aidl_return = mCapabilities.at(portId - 1);
     } else {
         return ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
     }