diff --git a/WICTextureLoader/WICTextureLoader11.cpp b/WICTextureLoader/WICTextureLoader11.cpp
index 3cb23bc..2be2624 100644
--- a/WICTextureLoader/WICTextureLoader11.cpp
+++ b/WICTextureLoader/WICTextureLoader11.cpp
@@ -570,7 +570,7 @@ namespace
 
         // Allocate temporary memory for image
         uint64_t rowBytes = (uint64_t(twidth) * uint64_t(bpp) + 7u) / 8u;
-        uint64_t numBytes = rowBytes * uint64_t(height);
+        uint64_t numBytes = rowBytes * uint64_t(theight);
 
         if (rowBytes > UINT32_MAX || numBytes > UINT32_MAX)
             return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW);
diff --git a/WICTextureLoader/WICTextureLoader12.cpp b/WICTextureLoader/WICTextureLoader12.cpp
index de8cee2..7483715 100644
--- a/WICTextureLoader/WICTextureLoader12.cpp
+++ b/WICTextureLoader/WICTextureLoader12.cpp
@@ -469,7 +469,7 @@ namespace
 
         // Allocate memory for decoded image
         uint64_t rowBytes = (uint64_t(twidth) * uint64_t(bpp) + 7u) / 8u;
-        uint64_t numBytes = rowBytes * uint64_t(height);
+        uint64_t numBytes = rowBytes * uint64_t(theight);
 
         if (rowBytes > UINT32_MAX || numBytes > UINT32_MAX)
             return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW);