diff --git a/libavcodec/g729postfilter.c b/libavcodec/g729postfilter.c
index 617744ec8e..125a4095f8 100644
--- a/libavcodec/g729postfilter.c
+++ b/libavcodec/g729postfilter.c
@@ -23,7 +23,6 @@
 
 #include "avcodec.h"
 #include "g729.h"
-#include "acelp_pitch_delay.h"
 #include "g729postfilter.h"
 #include "celp_math.h"
 #include "acelp_filters.h"
diff --git a/libavcodec/g729postfilter.h b/libavcodec/g729postfilter.h
index 5c2aaf235b..69815341ed 100644
--- a/libavcodec/g729postfilter.h
+++ b/libavcodec/g729postfilter.h
@@ -22,6 +22,7 @@
 #define AVCODEC_G729POSTFILTER_H
 
 #include <stdint.h>
+#include "acelp_pitch_delay.h"
 #include "audiodsp.h"
 
 /**