diff --git a/src/wrapper/wrap_cl.cpp b/src/wrapper/wrap_cl.cpp
index 03e3aad066cd94ee6ea18d368baa6faa5adaf606..1e2d5b5d899b827ac244eb7129d3cae4fedfbd95 100644
--- a/src/wrapper/wrap_cl.cpp
+++ b/src/wrapper/wrap_cl.cpp
@@ -172,6 +172,7 @@ BOOST_PYTHON_MODULE(_cl)
     ADD_ATTR(DEVICE_, VERSION);
     ADD_ATTR(DEVICE_, EXTENSIONS);
     ADD_ATTR(DEVICE_, PLATFORM);
+#ifdef CL_VERSION_1_1
     ADD_ATTR(DEVICE_, PREFERRED_VECTOR_WIDTH_HALF);
     ADD_ATTR(DEVICE_, HOST_UNIFIED_MEMORY);
     ADD_ATTR(DEVICE_, NATIVE_VECTOR_WIDTH_CHAR);
@@ -182,6 +183,7 @@ BOOST_PYTHON_MODULE(_cl)
     ADD_ATTR(DEVICE_, NATIVE_VECTOR_WIDTH_DOUBLE);
     ADD_ATTR(DEVICE_, NATIVE_VECTOR_WIDTH_HALF);
     ADD_ATTR(DEVICE_, OPENCL_C_VERSION);
+#endif
   }
 
   {