diff --git a/src/abbrev.c b/src/abbrev.c
index 7899bc56d49..567aa3ca5f4 100644
--- a/src/abbrev.c
+++ b/src/abbrev.c
@@ -25,6 +25,7 @@ Boston, MA 02111-1307, USA.  */
 #include "commands.h"
 #include "buffer.h"
 #include "window.h"
+#include "charset.h"
 #include "syntax.h"
 
 /* An abbrev table is an obarray.
diff --git a/src/bytecode.c b/src/bytecode.c
index b71d602d5c2..6ed0eda904f 100644
--- a/src/bytecode.c
+++ b/src/bytecode.c
@@ -36,6 +36,7 @@ by Hallvard:
 #include <config.h>
 #include "lisp.h"
 #include "buffer.h"
+#include "charset.h"
 #include "syntax.h"
 
 /*