diff --git a/src/mod/codecs/mod_amr/mod_amr.c b/src/mod/codecs/mod_amr/mod_amr.c
index 0769f62f3aa..37f41c27e98 100644
--- a/src/mod/codecs/mod_amr/mod_amr.c
+++ b/src/mod/codecs/mod_amr/mod_amr.c
@@ -142,7 +142,7 @@ static struct {
 
 const int switch_amr_frame_sizes[] = {12,13,15,17,19,20,26,31,5,0,0,0,0,0,0,1};
 
-#define SWITCH_AMR_OUT_MAX_SIZE 32
+#define SWITCH_AMR_OUT_MAX_SIZE 33
 #define SWITCH_AMR_MODES 9 /* plus SID */
 
 static switch_bool_t switch_amr_unpack_oa(unsigned char *buf, uint8_t *tmp, int encoded_data_len)
diff --git a/src/mod/codecs/mod_amrwb/mod_amrwb.c b/src/mod/codecs/mod_amrwb/mod_amrwb.c
index d89ec5d62bb..ebad893168e 100644
--- a/src/mod/codecs/mod_amrwb/mod_amrwb.c
+++ b/src/mod/codecs/mod_amrwb/mod_amrwb.c
@@ -94,7 +94,7 @@ static struct {
 
 const int switch_amrwb_frame_sizes[] = {17, 23, 32, 36, 40, 46, 50, 58, 60, 5, 0, 0, 0, 0, 1, 1};
 
-#define SWITCH_AMRWB_OUT_MAX_SIZE 61
+#define SWITCH_AMRWB_OUT_MAX_SIZE 62
 #define SWITCH_AMRWB_MODES 10 /* Silence Indicator (SID) included */
 
 #define invalid_frame_type (index > SWITCH_AMRWB_MODES && index != 0xe && index != 0xf) /* include SPEECH_LOST and NO_DATA*/