diff --git a/modules/audio_coding/codecs/isac/fix/source/lattice_mips.c b/modules/audio_coding/codecs/isac/fix/source/lattice_mips.c
index c8d28b25cf..3189726629 100644
--- a/modules/audio_coding/codecs/isac/fix/source/lattice_mips.c
+++ b/modules/audio_coding/codecs/isac/fix/source/lattice_mips.c
@@ -9,6 +9,7 @@
  */
 
 #include <stddef.h>
+#include <stdint.h>
 
 #include "modules/audio_coding/codecs/isac/fix/source/settings.h"