diff --git a/src/init.cpp b/src/init.cpp
index 5de013898..959dbbb16 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -24,6 +24,7 @@
 #include <sys/wait.h>
 #include <sys/stat.h>
 #include <unistd.h>
+#include <grp.h>
 
 ServerConfig::Uplink *uplink_server;