diff --git a/libavcodec/dct-test.c b/libavcodec/dct-test.c
index 77aa4b69b24d54c862d699a2b6d3cb545b3deee3..4ac991bc90589e899ecc39a59566c605f518a28c 100644
--- a/libavcodec/dct-test.c
+++ b/libavcodec/dct-test.c
@@ -30,6 +30,7 @@
 #include <string.h>
 #include <sys/time.h>
 #include <unistd.h>
+#include <math.h>
 
 #include "dsputil.h"
 
diff --git a/libavcodec/fft-test.c b/libavcodec/fft-test.c
index d2497383d5ba8be5be7b542c049b8eda1f53018c..5a79c88b0e19291ede77f7023d4e5f440f0ff57a 100644
--- a/libavcodec/fft-test.c
+++ b/libavcodec/fft-test.c
@@ -27,6 +27,8 @@
 #include <math.h>
 #include <unistd.h>
 #include <sys/time.h>
+#include <stdlib.h>
+#include <string.h>
 
 #undef exit