Index: main/manager.c
===================================================================
--- main/manager.c	(revision 109224)
+++ main/manager.c	(working copy)
@@ -2051,7 +2051,7 @@
 			term_strip(final_buf, buf, l);
 			final_buf[l] = '\0';
 		}
-		astman_append(s, S_OR(final_buf, buf));
+		astman_append(s, "%s", S_OR(final_buf, buf));
 		ast_free(buf);
 	}
 	close(fd);