diff --git a/nvim/ultisnips/tex.snippets b/nvim/ultisnips/tex.snippets
index 4bb0452..479ae9f 100644
--- a/nvim/ultisnips/tex.snippets
+++ b/nvim/ultisnips/tex.snippets
@@ -228,7 +228,7 @@ snippet || "Mid" iA
 endsnippet
 
 context "math()"
-snippet cc "Subset" iA
+snippet cc "Subset" wA
 \subset
 endsnippet
 
@@ -759,10 +759,14 @@ snippet ltable "Long table" b
 \end{longtable} $0
 endsnippet
 
-snippet --- "Hline" iA
+snippet '(?<!\\)---' "Hline" rwA
 \hline
 endsnippet
 
+snippet '(?<!\\)--' "Dash" rw
+\---
+endsnippet
+
 # Code
 
 snippet bsc "Blank Inline Code" wA