diff --git a/freebsd/Platform.c b/freebsd/Platform.c
index 82dd8a21..cd695168 100644
--- a/freebsd/Platform.c
+++ b/freebsd/Platform.c
@@ -5,6 +5,8 @@ Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "Platform.h"
 
 #include <devstat.h>