diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c
index b6b54d1d25392baf5880aece5cdb699ac0c213ec..8ef44ee0d76bd352cffbd7af6c9c87fbf9060a95 100644
--- a/drivers/acpi/numa/srat.c
+++ b/drivers/acpi/numa/srat.c
@@ -35,6 +35,7 @@ int pxm_to_node(int pxm)
 		return NUMA_NO_NODE;
 	return pxm_to_node_map[pxm];
 }
+EXPORT_SYMBOL(pxm_to_node);
 
 int node_to_pxm(int node)
 {