diff --git a/src/dg_olc.c b/src/dg_olc.c
index 7799d1e..2bf8aae 100644
--- a/src/dg_olc.c
+++ b/src/dg_olc.c
@@ -1175,7 +1175,7 @@ int format_script(struct descriptor_data *d)
       return FALSE;
     }
     len = len + nlen + llen;
-    strcat(nsc, line);
+    strcat(nsc, line);  /* strcat OK, size checked above */
 
     if (indent_next) {
       indent++;