1 files changed, 1 insertions, 0 deletions
diff --git a/src/serdi.c b/src/serdi.c
index 2c87e5e9..9e72737d 100644
--- a/src/serdi.c
+++ b/src/serdi.c
@@ -22,6 +22,7 @@
 #include <string.h>
 
 #include "string_utils.h"
+#include "system.h"
 #include "world.h"
 
 #define SERDI_ERROR(msg)       fprintf(stderr, "serdi: " msg);