diff --git a/tests/opus_decode_fuzzer.c b/tests/opus_decode_fuzzer.c
index 4b4a3f37..90026221 100644
--- a/tests/opus_decode_fuzzer.c
+++ b/tests/opus_decode_fuzzer.c
@@ -28,6 +28,7 @@
 #include "config.h"
 #endif
 
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include "opus.h"