diff --git a/libavutil/lfg.c b/libavutil/lfg.c
index 1dad4e442c..b5db5a4b17 100644
--- a/libavutil/lfg.c
+++ b/libavutil/lfg.c
@@ -20,6 +20,8 @@
  */
 
 #include <inttypes.h>
+#include <limits.h>
+#include <math.h>
 #include "lfg.h"
 #include "md5.h"
 #include "intreadwrite.h"