diff --git a/libavcodec/aaccoder.c b/libavcodec/aaccoder.c
index 60be5ef47d..9748fe1e1a 100644
--- a/libavcodec/aaccoder.c
+++ b/libavcodec/aaccoder.c
@@ -31,6 +31,7 @@
  ***********************************/
 
 #include <float.h>
+#include <math.h>
 #include "avcodec.h"
 #include "put_bits.h"
 #include "aac.h"
diff --git a/libavcodec/aacsbr.c b/libavcodec/aacsbr.c
index 117aa98875..6ac2cbc06a 100644
--- a/libavcodec/aacsbr.c
+++ b/libavcodec/aacsbr.c
@@ -35,6 +35,7 @@
 
 #include <stdint.h>
 #include <float.h>
+#include <math.h>
 
 #define ENVELOPE_ADJUSTMENT_OFFSET 2
 #define NOISE_FLOOR_OFFSET 6.0f