diff --git a/plugin.cpp b/plugin.cpp
index 37ee35e..caa8494 100644
--- a/plugin.cpp
+++ b/plugin.cpp
@@ -1,11 +1,14 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <vector>
 #include <string>
 #include <map>
 #include <pthread.h>
 #include <unistd.h>
 #include <cmath>
+#include <sys/types.h>
+#include <sys/wait.h>
 #include "mvt.hpp"
 #include "plugin.hpp"
 #include "projection.hpp"