diff --git a/src/fs_sendfile_unsupported.icpp b/src/fs_sendfile_unsupported.icpp
index 87af18fd..853c9b99 100644
--- a/src/fs_sendfile_unsupported.icpp
+++ b/src/fs_sendfile_unsupported.icpp
@@ -15,6 +15,7 @@
 */
 
 #include <errno.h>
+#include <sys/types.h>
 
 namespace fs
 {