diff --git a/opal/mca/event/libevent2021/libevent/evutil_rand.c b/opal/mca/event/libevent2021/libevent/evutil_rand.c
index 284e230e9e..750b2b50e6 100644
--- a/opal/mca/event/libevent2021/libevent/evutil_rand.c
+++ b/opal/mca/event/libevent2021/libevent/evutil_rand.c
@@ -70,8 +70,11 @@ ev_arc4random_buf(void *buf, size_t n)
 	 * and fall back otherwise.  (OSX does this using some linker
 	 * trickery.)
 	 */
-	if (arc4random_buf != NULL) {
+        {
+            void* tptr = (void*)arc4random_buf;
+            if (tptr != NULL) {
 		return arc4random_buf(buf, n);
+            }
 	}
 #endif
 	/* Make sure that we start out with b at a 4-byte alignment; plenty