diff --git a/res/res_agi.c b/res/res_agi.c
index 86c05f9afc..9d08359fea 100644
--- a/res/res_agi.c
+++ b/res/res_agi.c
@@ -51,6 +51,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/lock.h"
 #include "asterisk/strings.h"
 #include "asterisk/agi.h"
+#include "asterisk/version.h"
 #include "asterisk/speech.h"
 
 #define MAX_ARGS 128
@@ -370,6 +371,7 @@ static void setup_env(struct ast_channel *chan, char *request, int fd, int enhan
 	ast_agi_fdprintf(chan, fd, "agi_language: %s\n", chan->language);
 	ast_agi_fdprintf(chan, fd, "agi_type: %s\n", chan->tech->type);
 	ast_agi_fdprintf(chan, fd, "agi_uniqueid: %s\n", chan->uniqueid);
+	ast_agi_fdprintf(chan, fd, "agi_version: %s\n", ASTERISK_VERSION);
 
 	/* ANI/DNIS */
 	ast_agi_fdprintf(chan, fd, "agi_callerid: %s\n", S_OR(chan->cid.cid_num, "unknown"));