diff --git a/lib/chibi/net.stub b/lib/chibi/net.stub
index 5b923b28..f52209df 100644
--- a/lib/chibi/net.stub
+++ b/lib/chibi/net.stub
@@ -23,4 +23,4 @@
 (define-c int listen (int int))
 (define-c int socket (int int int))
 (define-c int connect (int sockaddr int))
-(define-c int accept (int sockaddr int))
+(define-c int accept (int sockaddr (pointer unsigned)))