diff --git a/libc3/file.c b/libc3/file.c
index e0217b6..7c4215d 100644
--- a/libc3/file.c
+++ b/libc3/file.c
@@ -10,7 +10,7 @@
* AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
* THIS SOFTWARE.
*/
-#include <assert.h>
+#include "assert.h"
#include <fcntl.h>
#include <err.h>
#include <errno.h>