diff --git a/libavutil/lzo.h b/libavutil/lzo.h
index 6c5e5a31bcbaca45c5da78f8a33cac9b3617b871..183f9595ac80ef4662aa3e727f947be797139b46 100644
--- a/libavutil/lzo.h
+++ b/libavutil/lzo.h
@@ -22,6 +22,8 @@
 #ifndef FFMPEG_LZO_H
 #define FFMPEG_LZO_H
 
+#include <stdint.h>
+
 #define LZO_INPUT_DEPLETED 1
 #define LZO_OUTPUT_FULL 2
 #define LZO_INVALID_BACKPTR 4