diff --git a/language-reference-manual/lrm.trlc b/language-reference-manual/lrm.trlc
index edda32d..7f6a2aa 100644
--- a/language-reference-manual/lrm.trlc
+++ b/language-reference-manual/lrm.trlc
@@ -951,7 +951,7 @@ section "Checks" {
       '''
     rsl = """
       checks Requirement {
-        len(description) < 10,
+        len(description) >= 10,
           warning "Description is too short",
           description