diff --git a/tests/server/sockfilt.c b/tests/server/sockfilt.c
index 8f4fb0ededd3d30f6f1ab881b2d32c170efae7c3..b902a67e7cd4b01a539700bc452d713cc467fb5c 100644
--- a/tests/server/sockfilt.c
+++ b/tests/server/sockfilt.c
@@ -170,7 +170,6 @@ static int juggle(curl_socket_t *sockfdp,
   fd_set fds_err;
   curl_socket_t maxfd;
   ssize_t r;
-  int err;
   unsigned char buffer[256]; /* FIX: bigger buffer */
   char data[256];
   curl_socket_t sockfd;