1 files changed, 1 insertions, 1 deletions
diff --git a/src/wc.c b/src/wc.c
index 0fd138d07..731eb4a47 100644
--- a/src/wc.c
+++ b/src/wc.c
@@ -50,7 +50,7 @@
 #define BUFFER_SIZE (16 * 1024)
 
 /* The name this program was run with. */
-char *program_name;
+char const *program_name;
 
 /* Cumulative number of lines, words, chars and bytes in all files so far.
    max_line_length is the maximum over all files processed so far.  */