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diff --git a/src/extension.ts b/src/extension.ts
index c0c3fecf093fc5c02759b58d9f4facfea161e890..5f796c94c1b678aeeb1c99ff1350732c2200f194 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -52,6 +52,11 @@       intellisense.dispose()
       return
     }
 
+    if (!tw) {
+      intellisense.dispose()
+      return
+    }
+
     intellisense.reload(tw)
   }
 }
@@ -132,8 +137,10 @@           // match emmet style syntax
           // e.g. .flex.items-center
           let lineText = text.split('\n').pop()
           matches = lineText.match(/\.([^()#>*^ \[\]=$@{}]*)$/i)
-          let parts = matches[matches.length - 1].split('.')
-          str = parts[parts.length - 1]
+          if (matches) {
+            let parts = matches[matches.length - 1].split('.')
+            str = parts[parts.length - 1]
+          }
         }
 
         if (typeof str !== 'undefined') {