diff --git a/src/ProcessLinux.hpp b/src/ProcessLinux.hpp
index 533054e..296453b 100644
--- a/src/ProcessLinux.hpp
+++ b/src/ProcessLinux.hpp
@@ -3,6 +3,8 @@
 #include <fcntl.h>
 #include <sys/wait.h>
 #include <unistd.h>
+#include <sys/types.h>
+#include <signal.h>
 
 namespace uciadapter {