1 files changed, 1 insertions, 0 deletions
diff --git a/src/gie.c b/src/gie.c
index 17f2cca0..e0effaa4 100644
--- a/src/gie.c
+++ b/src/gie.c
@@ -108,6 +108,7 @@ Thomas Knudsen, thokn@sdfe.dk, 2017-10-01/2017-10-08
 #include <errno.h>
 #include <math.h>
 #include <stdarg.h>
+#include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>