diff --git a/include/armnnTestUtils/TensorHelpers.hpp b/include/armnnTestUtils/TensorHelpers.hpp
index fa9c970..14c5061 100644
--- a/include/armnnTestUtils/TensorHelpers.hpp
+++ b/include/armnnTestUtils/TensorHelpers.hpp
@@ -47,7 +47,7 @@
             return true;
         }
 
-        if (std::isnan(a) && std::isnan(b))
+        if (std::isnan(static_cast<float>(a)) && std::isnan(static_cast<float>(b)))
         {
             return true;
         }