diff --git a/src/Bot/Trigger.hs b/src/Bot/Trigger.hs
index 8ac9a78..cf4cd17 100644
--- a/src/Bot/Trigger.hs
+++ b/src/Bot/Trigger.hs
@@ -52,7 +52,7 @@ matchesTrigger phrase text =
   T.unpack text =~ pattern
   where
     pattern :: String
-    pattern = "(^|\\s)" <> escapeRegex (T.unpack phrase) <> "([\\s.,!?;:]|$)"
+    pattern = "(^|[[:space:]])" <> escapeRegex (T.unpack phrase) <> "([[:space:].,!?;:]|$)"
 
 escapeRegex :: String -> String
 escapeRegex = concatMap esc