diff --git a/ext/amrwbdec/amrwbdec.c b/ext/amrwbdec/amrwbdec.c
index 7d63d88cc8..bbaf33be8a 100644
--- a/ext/amrwbdec/amrwbdec.c
+++ b/ext/amrwbdec/amrwbdec.c
@@ -59,6 +59,8 @@ static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
 GST_DEBUG_CATEGORY_STATIC (gst_amrwbdec_debug);
 #define GST_CAT_DEFAULT gst_amrwbdec_debug
 
+#define L_FRAME16k      320     /* Frame size at 16kHz  */
+
 static const unsigned char block_size[16] =
     { 18, 24, 33, 37, 41, 47, 51, 59, 61,
   6, 6, 0, 0, 0, 1, 1
diff --git a/ext/amrwbdec/amrwbdec.h b/ext/amrwbdec/amrwbdec.h
index 750c618edb..4b1739cd86 100644
--- a/ext/amrwbdec/amrwbdec.h
+++ b/ext/amrwbdec/amrwbdec.h
@@ -25,8 +25,6 @@
 #include <opencore-amrwb/dec_if.h>
 #include <opencore-amrwb/if_rom.h>
 
-#define L_FRAME16k      320   /* Frame size at 16kHz  */
-
 G_BEGIN_DECLS
 
 #define GST_TYPE_AMRWBDEC			\