diff --git a/external/external_build.cmake b/external/external_build.cmake
index 37005dc..4378d42 100644
--- a/external/external_build.cmake
+++ b/external/external_build.cmake
@@ -113,6 +113,7 @@ if (INTERNAL_HDF5)
       -DHDF5_BUILD_HL_LIB=ON
       -DDEFAULT_API_VERSION:STRING=v110 
       -DBUILD_SHARED_LIBS=ON
+      -DHDF5_ENABLE_NONSTANDARD_FEATURE_FLOAT16=OFF
       BUILD_BYPRODUCTS ${EXT_INSTALL}/lib/libhdf5-static.a ${EXT_INSTALL}/lib/libhdf5_cpp.a
   )
   SET(hdf5_built hdf5)