diff --git a/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_events.c b/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_events.c
index b3682443b3..19bae9dc80 100644
--- a/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_events.c
+++ b/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_events.c
@@ -7,6 +7,7 @@
 #endif
 
 #include <stdlib.h>
+#include <string.h>
 
 #include <langinfo.h>
 
diff --git a/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_icccm.c b/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_icccm.c
index 4a9d3d661a..887ec351ca 100644
--- a/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_icccm.c
+++ b/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_icccm.c
@@ -14,6 +14,7 @@
 #endif
 
 #include <stdlib.h>
+#include <string.h>
 
 #include "Ecore.h"
 #include "ecore_x_private.h"
diff --git a/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_selection.c b/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_selection.c
index b224fc7fb2..1bd7cccd7d 100644
--- a/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_selection.c
+++ b/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_selection.c
@@ -7,6 +7,7 @@
 #endif
 
 #include <stdlib.h>
+#include <string.h>
 
 #include "ecore_private.h"
 #include "Ecore.h"
diff --git a/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_window_prop.c b/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_window_prop.c
index 2d25ce5475..225b8bf0b9 100644
--- a/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_window_prop.c
+++ b/legacy/ecore/src/lib/ecore_x/xlib/ecore_x_window_prop.c
@@ -7,6 +7,7 @@
 #endif
 
 #include <stdlib.h>
+#include <string.h>
 
 #include "Ecore.h"
 #include "ecore_x_private.h"