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-rw-r--r--demos/bio/sconnect.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/demos/bio/sconnect.c b/demos/bio/sconnect.c
index 8fb6302b94..59fab1985e 100644
--- a/demos/bio/sconnect.c
+++ b/demos/bio/sconnect.c
@@ -9,6 +9,7 @@
*/
#include <stdio.h>
#include <stdlib.h>
+#include <unistd.h>
#include <openssl/err.h>
#include <openssl/ssl.h>