diff --git a/src/utils/execmd.h b/src/utils/execmd.h
index 93ee8607..7da15d92 100644
--- a/src/utils/execmd.h
+++ b/src/utils/execmd.h
@@ -20,6 +20,7 @@
 #include <string>
 #include <vector>
 #include <stack>
+#include <sys/types.h>
 
 /**
  * Callback function object to advise of new data arrival, or just periodic
diff --git a/src/utils/listmem.cpp b/src/utils/listmem.cpp
index 24bef9af..076b3056 100644
--- a/src/utils/listmem.cpp
+++ b/src/utils/listmem.cpp
@@ -1,5 +1,6 @@
 #include "listmem.h"
 
+#include <stdlib.h>
 #include <string.h>
 #include <iomanip>