diff --git a/slirp/libslirp.h b/slirp/libslirp.h
index f90f0f524c8c06e6056fdedf3ef009f7ba3b0e83..540b3e5903e3e64abacfe723422602a83257a417 100644
--- a/slirp/libslirp.h
+++ b/slirp/libslirp.h
@@ -3,7 +3,6 @@
 
 #include "qemu-common.h"
 
-struct Slirp;
 typedef struct Slirp Slirp;
 
 int get_dns_addr(struct in_addr *pdns_addr);