diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 515253fe46cfd..dc11d51bd8b3c 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -5,6 +5,7 @@
 
 #include <sys/stat.h>
 #include <ctype.h>
+#include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>