diff --git a/src/clinfo_ext.h b/src/clinfo_ext.h
index 43b7b6082fda28ad433f26c5d9a5e2e743e24940..dc4d6a8e6b9dd42b58b1fdf5dafeadd5fb2a4671 100644
--- a/src/clinfo_ext.h
+++ b/src/clinfo_ext.h
@@ -71,6 +71,10 @@
 #define CL_DEVICE_GFXIP_MAJOR_AMD			0x404A
 #define CL_DEVICE_GFXIP_MINOR_AMD			0x404B
 #define CL_DEVICE_AVAILABLE_ASYNC_QUEUES_AMD		0x404C
+#define CL_DEVICE_PREFERRED_WORK_GROUP_SIZE_AMD         0x4030
+#define CL_DEVICE_MAX_WORK_GROUP_SIZE_AMD               0x4031
+#define CL_DEVICE_PREFERRED_CONSTANT_BUFFER_SIZE_AMD    0x4033
+#define CL_DEVICE_PCIE_ID_AMD                           0x4034
 
 #ifndef CL_DEVICE_TOPOLOGY_TYPE_PCIE_AMD
 #define CL_DEVICE_TOPOLOGY_TYPE_PCIE_AMD		1