1 files changed, 1 insertions, 1 deletions
diff --git a/src/dd.c b/src/dd.c
index b1635b875..947e6876c 100644
--- a/src/dd.c
+++ b/src/dd.c
@@ -129,7 +129,7 @@ enum
   };
 
 /* The name this program was run with. */
-char *program_name;
+char const *program_name;
 
 /* The name of the input file, or NULL for the standard input. */
 static char const *input_file = NULL;