diff --git a/bin/named/unix/dlz_dlopen_driver.c b/bin/named/unix/dlz_dlopen_driver.c
index f9a46ebb77..b8bb27dd70 100644
--- a/bin/named/unix/dlz_dlopen_driver.c
+++ b/bin/named/unix/dlz_dlopen_driver.c
@@ -17,7 +17,9 @@
 #include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
+#if HAVE_DLFCN_H
 #include <dlfcn.h>
+#endif
 
 #include <dns/log.h>
 #include <dns/result.h>