diff --git a/ci.toml b/ci.toml
index 489d2a3..0f9701f 100644
--- a/ci.toml
+++ b/ci.toml
@@ -19,7 +19,7 @@ cairo = {}
 cairodemo = {}
 cargo = {}
 cleye = {}
-cmatrix = {}
+#cmatrix = {} # TIOCSTI - do not implement (security issues)
 contain = {}
 coreutils = {}
 cpal = {}