diff --git a/apps/app_agi.c b/apps/app_agi.c
index c30fd5be23272bf0f54f296a0173b382e79a1da9..9e083f23183a5b425285e9b98bd21db13de626ac 100755
--- a/apps/app_agi.c
+++ b/apps/app_agi.c
@@ -550,6 +550,8 @@ static int handle_recordfile(struct ast_channel *chan, AGI *agi, int argc, char
 		if (!fs) {
 			res = -1;
 			fdprintf(agi->fd, "200 result=%d (writefile)\n", res);
+			if (sildet)
+				ast_dsp_free(sildet);
 			return RESULT_FAILURE;
 		}
 		
@@ -566,12 +568,16 @@ static int handle_recordfile(struct ast_channel *chan, AGI *agi, int argc, char
 			if (res < 0) {
 				ast_closestream(fs);
 				fdprintf(agi->fd, "200 result=%d (waitfor) endpos=%ld\n", res,sample_offset);
+				if (sildet)
+					ast_dsp_free(sildet);
 				return RESULT_FAILURE;
 			}
 			f = ast_read(chan);
 			if (!f) {
 				fdprintf(agi->fd, "200 result=%d (hangup) endpos=%ld\n", 0, sample_offset);
 				ast_closestream(fs);
+				if (sildet)
+					ast_dsp_free(sildet);
 				return RESULT_FAILURE;
 			}
 			switch(f->frametype) {
@@ -582,6 +588,8 @@ static int handle_recordfile(struct ast_channel *chan, AGI *agi, int argc, char
 					fdprintf(agi->fd, "200 result=%d (dtmf) endpos=%ld\n", f->subclass, sample_offset);
 					ast_closestream(fs);
 					ast_frfree(f);
+					if (sildet)
+						ast_dsp_free(sildet);
 					return RESULT_SUCCESS;
 				}
 				break;