1 files changed, 1 insertions, 0 deletions

diff --git a/man.c b/man.c
index cb87bb6..1256ef9 100644
--- a/man.c
+++ b/man.c
@@ -5,6 +5,7 @@
  */
 
 #include <stdio.h>
+#include <stddef.h>
 
 #include <X11/Xlib.h>
 #include <X11/Intrinsic.h>