diff --git a/apps/app_externalivr.c b/apps/app_externalivr.c
index 42fd469c31..965241b3a0 100644
--- a/apps/app_externalivr.c
+++ b/apps/app_externalivr.c
@@ -112,6 +112,7 @@ static void send_child_event(FILE *handle, const char event, const char *data,
 
 	fprintf(handle, "%s\n", tmp);
 	ast_chan_log(LOG_DEBUG, chan, "sent '%s'\n", tmp);
+	ast_free(tmp);
 }
 
 static void *gen_alloc(struct ast_channel *chan, void *params)