diff --git a/src/common.c b/src/common.c
index a8282fe7..13a2366c 100644
--- a/src/common.c
+++ b/src/common.c
@@ -33,9 +33,9 @@
  */
 #include "config.h"
 
+#include <errno.h>
 #include <sys/select.h>
 #include <assert.h>
-#include <errno.h>
 #include <stdlib.h>
 #include <stdint.h>
 #include <string.h>
diff --git a/src/ui/inputwin.c b/src/ui/inputwin.c
index c94c0a8c..2c7eae34 100644
--- a/src/ui/inputwin.c
+++ b/src/ui/inputwin.c
@@ -35,10 +35,10 @@
 #define _XOPEN_SOURCE_EXTENDED
 #include "config.h"
 
+#include <stdio.h>
 #include <sys/select.h>
 #include <stdlib.h>
 #include <string.h>
-#include <stdio.h>
 #include <wchar.h>
 #include <sys/time.h>
 #include <errno.h>
diff --git a/src/xmpp/blocking.c b/src/xmpp/blocking.c
index 766313e0..a272b0c9 100644
--- a/src/xmpp/blocking.c
+++ b/src/xmpp/blocking.c
@@ -33,6 +33,7 @@
  */
 
 #include <stdlib.h>
+#include <string.h>
 
 #ifdef HAVE_LIBMESODE
 #include <mesode.h>