diff --git a/poky/documentation/kernel-dev/advanced.rst b/poky/documentation/kernel-dev/advanced.rst
index bcaaaee..4c46350 100644
--- a/poky/documentation/kernel-dev/advanced.rst
+++ b/poky/documentation/kernel-dev/advanced.rst
@@ -303,8 +303,8 @@
                         .
                         .
                         .
- 	        char *dump_write = NULL, *files_source = NULL;
- 	        int opt;
+                char *dump_write = NULL, *files_source = NULL;
+                int opt;
       --
       2.10.1