diff --git a/config.h.in b/config.h.in
index 9c0927a9e..c4c639f8d 100644
--- a/config.h.in
+++ b/config.h.in
@@ -680,9 +680,6 @@
 /* Define to 1 if the `putenv' has a const argument. */
 #undef PUTENV_CONST
 
-/* Define as the return type of signal handlers (`int' or `void'). */
-#undef RETSIGTYPE
-
 /* The user sudo should run commands as by default. */
 #undef RUNAS_DEFAULT
 
diff --git a/plugins/sudoers/logging.h b/plugins/sudoers/logging.h
index fab1894e5..90166ced1 100644
--- a/plugins/sudoers/logging.h
+++ b/plugins/sudoers/logging.h
@@ -52,6 +52,6 @@ void audit_failure(char **, char const * const, ...);
 void log_allowed(int);
 void log_denial(int, int);
 void log_error(int flags, const char *fmt, ...) __printflike(2, 3);
-RETSIGTYPE reapchild(int);
+void reapchild(int);
 
 #endif /* _LOGGING_H */
diff --git a/plugins/sudoers/visudo.c b/plugins/sudoers/visudo.c
index e2926d689..39bce8151 100644
--- a/plugins/sudoers/visudo.c
+++ b/plugins/sudoers/visudo.c
@@ -96,7 +96,7 @@ struct sudoersfile {
 /*
  * Function prototypes
  */
-static RETSIGTYPE quit(int);
+static void quit(int);
 static char *get_args(char *);
 static char *get_editor(char **);
 static void get_hostname(void);
@@ -1141,7 +1141,7 @@ cleanup(int gotsignal)
 /*
  * Unlink sudoers temp files (if any) and exit.
  */
-static RETSIGTYPE
+static void
 quit(int signo)
 {
     cleanup(signo);