diff --git a/tool/CommandFoeRead.cpp b/tool/CommandFoeRead.cpp
index e1d63e3a..e42f8aa1 100644
--- a/tool/CommandFoeRead.cpp
+++ b/tool/CommandFoeRead.cpp
@@ -4,6 +4,8 @@
  *
  ****************************************************************************/
 
+#include <string.h>
+
 #include <iostream>
 #include <iomanip>
 using namespace std;
diff --git a/tool/CommandFoeWrite.cpp b/tool/CommandFoeWrite.cpp
index 38a40196..01c28e8c 100644
--- a/tool/CommandFoeWrite.cpp
+++ b/tool/CommandFoeWrite.cpp
@@ -5,6 +5,7 @@
  ****************************************************************************/
 
 #include <libgen.h> // basename()
+#include <string.h>
 
 #include <iostream>
 #include <iomanip>