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-rw-r--r--include/xtables.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/xtables.h b/include/xtables.h
index 72e6ae22..3ac561f5 100644
--- a/include/xtables.h
+++ b/include/xtables.h
@@ -224,7 +224,7 @@ enum exittype {
extern void exit_printhelp() __attribute__((noreturn));
extern void exit_tryhelp(int) __attribute__((noreturn));
int check_inverse(const char option[], int *invert, int *optind, int argc);
-void exit_error(enum exittype, char *, ...)__attribute__((noreturn,
+void exit_error(enum exittype, const char *, ...)__attribute__((noreturn,
format(printf,2,3)));
extern const char *program_name, *program_version;