diff --git a/src/server/slavefuncs.h b/src/server/slavefuncs.h
--- a/src/server/slavefuncs.h
+++ b/src/server/slavefuncs.h
@@ -24,7 +24,7 @@
 int ssh_keygen();
 int register_user(char *username, char *email);
 int login_user(char *username);
-void conf_replace(char *username);
+int conf_replace(char *username);
 void exec_blender(struct blendjob* blendjob, char *input, char *output, int frame);