diff --git a/source/Core/BSP/Miniware/ThermoModel.cpp b/source/Core/BSP/Miniware/ThermoModel.cpp
index 1b04bd5f..25376d4e 100644
--- a/source/Core/BSP/Miniware/ThermoModel.cpp
+++ b/source/Core/BSP/Miniware/ThermoModel.cpp
@@ -125,6 +125,6 @@ const int32_t uVtoDegC[] = {
     38137, 500, //
 };
 #endif
-const int uVtoDegCItems = sizeof(uVtoDegC) / (2 * sizeof(uint16_t));
+const int uVtoDegCItems = sizeof(uVtoDegC) / (2 * sizeof(uVtoDegC[0]));
 
 uint32_t TipThermoModel::convertuVToDegC(uint32_t tipuVDelta) { return Utils::InterpolateLookupTable(uVtoDegC, uVtoDegCItems, tipuVDelta); }
diff --git a/source/Core/BSP/Pinecil/ThermoModel.cpp b/source/Core/BSP/Pinecil/ThermoModel.cpp
index 846a0a00..fa2cd65d 100644
--- a/source/Core/BSP/Pinecil/ThermoModel.cpp
+++ b/source/Core/BSP/Pinecil/ThermoModel.cpp
@@ -67,6 +67,6 @@ const int32_t uVtoDegC[] = {
 };
 #endif
 
-const int uVtoDegCItems = sizeof(uVtoDegC) / (2 * sizeof(uint16_t));
+const int uVtoDegCItems = sizeof(uVtoDegC) / (2 * sizeof(uVtoDegC[0]));
 
 uint32_t TipThermoModel::convertuVToDegC(uint32_t tipuVDelta) { return Utils::InterpolateLookupTable(uVtoDegC, uVtoDegCItems, tipuVDelta); }