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-rw-r--r--src/control/eld.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/control/eld.c b/src/control/eld.c
index c4169c2f..1e161eb1 100644
--- a/src/control/eld.c
+++ b/src/control/eld.c
@@ -30,6 +30,7 @@
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
+#include <ctype.h>
#include "control_local.h"
static void __fill_eld_ctl_id(snd_ctl_elem_id_t *id, int dev, int subdev)