diff --git a/service/ClusterGeoIpService.cpp b/service/ClusterGeoIpService.cpp
index 0c815272..90b0e3e6 100644
--- a/service/ClusterGeoIpService.cpp
+++ b/service/ClusterGeoIpService.cpp
@@ -34,6 +34,7 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <sys/wait.h>
 #include <signal.h>
 #include <errno.h>