diff --git a/src/server/slave.c b/src/server/slave.c
--- a/src/server/slave.c
+++ b/src/server/slave.c
@@ -30,6 +30,7 @@
 // Provides DISTREN_REQUEST* which is in reality, DISTREN_SEND(signal) in the minds of your average joe
 #include "protocol.h"
 #include "options.h" // Confuse, etc.
+#include "slavefuncs.h" // Slave functions
 #include <string.h>
 #include <stdio.h>