diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h
index f8bcd0e21a26649fb70ad645d79b09ee00412283..bb3a5a2cd5705062231fe7d87fac4361a5bde889 100644
--- a/include/linux/of_graph.h
+++ b/include/linux/of_graph.h
@@ -15,6 +15,7 @@
 #define __LINUX_OF_GRAPH_H
 
 #include <linux/types.h>
+#include <linux/errno.h>
 
 /**
  * struct of_endpoint - the OF graph endpoint data structure