1 files changed, 1 insertions, 1 deletions
diff --git a/pw/pw.h b/pw/pw.h
index aa437ec..f541b26 100644
--- a/pw/pw.h
+++ b/pw/pw.h
@@ -124,7 +124,7 @@ int boolean_val(char const * str, int dflt);
 char const *boolean_str(int val);
 char *newstr(char const * p);
 
-void pw_log(struct userconf * cnf, int mode, int which, char const * fmt,...);
+void pw_log(struct userconf * cnf, int mode, int which, char const * fmt,...) __printflike(4, 5);
 char *pw_pwcrypt(char *password);
 
 extern const char *Modes[];