diff --git a/src/modules/sym.txt b/src/modules/sym.txt
index 8d98041..79c3787 100644
--- a/src/modules/sym.txt
+++ b/src/modules/sym.txt
@@ -113,6 +113,8 @@ backslash \
 co ℅
 colon :
   .double ∷
+  .tri ⁝
+  .tri.op ⫶
   .eq ≔
   .double.eq ⩴
 comma ,