diff --git a/src/ANT/ANT.h b/src/ANT/ANT.h
index 3e9b1cf2a..a6fc6f8ee 100644
--- a/src/ANT/ANT.h
+++ b/src/ANT/ANT.h
@@ -462,7 +462,7 @@ signals:
 
     void posData(uint8_t position);
 
-    void tcoreData(float core, float skin, int qual);
+    void tcoreData(float core, float skin, float hsi, int qual);
 
     // signal for passing remote control commands
     void antRemoteControl(uint16_t command);
diff --git a/src/ANT/ANTChannel.h b/src/ANT/ANTChannel.h
index 1a72b4c8a..2d457104d 100644
--- a/src/ANT/ANTChannel.h
+++ b/src/ANT/ANTChannel.h
@@ -258,7 +258,7 @@ class ANTChannel : public QObject {
         void posData(uint8_t position);
 
         // signal for core temp data
-        void tcoreData(float core, float skin, int qual, float strain);
+        void tcoreData(float core, float skin, float strain, int qual );
 
         // signal for passing remote control commands
         void antRemoteControl(uint16_t command);
diff --git a/src/ANT/ANTlocalController.h b/src/ANT/ANTlocalController.h
index d0f25b319..529bbe435 100644
--- a/src/ANT/ANTlocalController.h
+++ b/src/ANT/ANTlocalController.h
@@ -86,7 +86,7 @@ signals:
     void rrData(uint16_t  measurementTime, uint8_t heartrateBeats, uint8_t instantHeartrate);
 
     void posData(uint8_t position);
-    void tcoreData(float core, float skin, int qual);
+    void tcoreData(float core, float skin, float hsi, int qual);
 
     // signal for passing remote control commands to train view
     void remoteControl(uint16_t command);