diff --git a/lib/libalpm/be_files.c b/lib/libalpm/be_files.c
index 61c0c0e0..078136ed 100644
--- a/lib/libalpm/be_files.c
+++ b/lib/libalpm/be_files.c
@@ -33,6 +33,7 @@
 #include <ctype.h>
 #include <time.h>
 #include <limits.h> /* PATH_MAX */
+#include <locale.h> /* setlocale */
 
 /* libalpm */
 #include "db.h"
diff --git a/lib/libalpm/package.c b/lib/libalpm/package.c
index 24304e14..172456d6 100644
--- a/lib/libalpm/package.c
+++ b/lib/libalpm/package.c
@@ -33,6 +33,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
+#include <locale.h> /* setlocale */
 
 /* libarchive */
 #include <archive.h>