diff --git a/libavcodec/libgsm.c b/libavcodec/libgsm.c
index 1098bce631..a1fbb55f15 100644
--- a/libavcodec/libgsm.c
+++ b/libavcodec/libgsm.c
@@ -30,6 +30,7 @@
 #include <gsm/gsm.h>
 
 #include "avcodec.h"
+#include "internal.h"
 #include "gsm.h"
 
 static av_cold int libgsm_encode_init(AVCodecContext *avctx) {
diff --git a/libavcodec/libopencore-amr.c b/libavcodec/libopencore-amr.c
index 8265848155..724c3fcaf5 100644
--- a/libavcodec/libopencore-amr.c
+++ b/libavcodec/libopencore-amr.c
@@ -20,6 +20,7 @@
  */
 
 #include "avcodec.h"
+#include "internal.h"
 #include "libavutil/avstring.h"
 #include "libavutil/opt.h"
 
diff --git a/libavcodec/libspeexdec.c b/libavcodec/libspeexdec.c
index 0ce09f4be7..a9ed04719d 100644
--- a/libavcodec/libspeexdec.c
+++ b/libavcodec/libspeexdec.c
@@ -23,6 +23,7 @@
 #include <speex/speex_stereo.h>
 #include <speex/speex_callbacks.h>
 #include "avcodec.h"
+#include "internal.h"
 
 typedef struct {
     AVFrame frame;