diff --git a/include/kernel_vendor.h b/include/kernel_vendor.h
index 0b6a57fe7..83eccd5e7 100644
--- a/include/kernel_vendor.h
+++ b/include/kernel_vendor.h
@@ -4,6 +4,7 @@
  */
 
 #pragma OPENCL EXTENSION cl_khr_byte_addressable_store : enable
+#pragma OPENCL EXTENSION cl_clang_storage_class_specifiers : enable
 
 /**
  * vendor specific
@@ -38,4 +39,4 @@
  */
 
 #ifdef IS_GENERIC
-#endif
\ No newline at end of file
+#endif