diff --git a/find_path.c b/find_path.c
index afb135562..01845c45b 100644
--- a/find_path.c
+++ b/find_path.c
@@ -63,7 +63,7 @@ extern char *malloc	__P((size_t));
 extern char *getenv	__P((const char *));
 extern char *strcpy	__P((char *, const char *));
 extern int fprintf	__P((FILE *, const char *, ...));
-extern int readlink	__P((const char *, char *, size_t));
+extern ssize_t readlink	__P((const char *, char *, size_t));
 extern int stat		__P((const char *, struct stat *));
 extern int lstat	__P((const char *, struct stat *));
 #ifdef HAVE_STRDUP
diff --git a/sudo_realpath.c b/sudo_realpath.c
index 2547823b8..6724ccb61 100644
--- a/sudo_realpath.c
+++ b/sudo_realpath.c
@@ -55,7 +55,7 @@ static char rcsid[] = "$Id$";
 
 #ifndef STDC_HEADERS
 extern char *strcpy	__P((char *, const char *));
-extern int readlink	__P((const char *, char *, size_t));
+extern ssize_t readlink	__P((const char *, char *, size_t));
 extern int lstat	__P((const char *, struct stat *));
 #endif /* !STDC_HEADERS */