diff --git a/src/SSLSocket.m b/src/SSLSocket.m
index f86405d..4fc16c0 100644
--- a/src/SSLSocket.m
+++ b/src/SSLSocket.m
@@ -182,7 +182,8 @@ static SSL_CTX *ctx;
 
 - (void)close
 {
-	SSL_shutdown(ssl);
+	if (ssl != NULL)
+		SSL_shutdown(ssl);
 
 	[super close];
 }