diff --git a/alint.5.scd b/alint.5.scd
index efbd41745c37e4534e9eca801d0a0ee21dd41688..5df881665dc122c7f6cf157690ed815492f468b9 100644
--- a/alint.5.scd
+++ b/alint.5.scd
@@ -278,7 +278,7 @@ Severity: Serious, Certainty: Certain
 
 ## _builddir-is-set [AL26]
 
-_builddir is set instead of builddir, which is an old variable from before builddir
+\_builddir is set instead of builddir, which is an old variable from before builddir
 existed as a concept understood by abuild
 
 Severity: Serious, Certainty: Certain