diff --git a/apps/ocsp.c b/apps/ocsp.c
index 43179c77b8..a8e00fd0ed 100644
--- a/apps/ocsp.c
+++ b/apps/ocsp.c
@@ -62,6 +62,8 @@
 				   on OpenVMS */
 #endif
 
+#define USE_SOCKETS
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>