diff --git a/src/libwrapper.cpp b/src/libwrapper.cpp
index 0848150..503c97b 100644
--- a/src/libwrapper.cpp
+++ b/src/libwrapper.cpp
@@ -23,6 +23,7 @@
 #endif
 
 #include <glib/gi18n.h>
+#include <cstring>
 #include <map>
 
 #include "utils.hpp"
diff --git a/src/readline.cpp b/src/readline.cpp
index 826e62d..a354952 100644
--- a/src/readline.cpp
+++ b/src/readline.cpp
@@ -23,6 +23,7 @@
 #endif
 
 #include <cstdio>
+#include <cstdlib>
 #ifdef WITH_READLINE
 #  include <readline/readline.h>
 #  include <readline/history.h>
diff --git a/src/utils.cpp b/src/utils.cpp
index f933e0c..7d3e365 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -24,6 +24,7 @@
 
 #include <glib.h>
 #include <glib/gi18n.h>
+#include <cstdlib>
 
 #include "utils.hpp"