diff --git a/res/res_agi.c b/res/res_agi.c
index 8a128e2a29..efd8549b31 100644
--- a/res/res_agi.c
+++ b/res/res_agi.c
@@ -737,6 +737,10 @@ static enum agi_result launch_asyncagi(struct ast_channel *chan, char *argv[], i
 			ast_frfree(f);
 		}
 	}
+
+	if (async_agi.speech) {
+		ast_speech_destroy(async_agi.speech);
+	}
 quit:
 	/* notify manager users this channel cannot be
 	   controlled anymore by Async AGI */
@@ -2929,6 +2933,9 @@ static enum agi_result run_agi(struct ast_channel *chan, char *request, AGI *agi
 			}
 		}
 	}
+	if (agi->speech) {
+		ast_speech_destroy(agi->speech);
+	}
 	/* Notify process */
 	if (send_sighup) {
 		if (pid > -1) {