diff --git a/packages/tailwindcss-language-service/src/completionProvider.ts b/packages/tailwindcss-language-service/src/completionProvider.ts
index d8bee18835f75d8e646c3d7742b7c0e79c6f047f..63a5edf3b6f87daf725592ef09d841e7e54b5bae 100644
--- a/packages/tailwindcss-language-service/src/completionProvider.ts
+++ b/packages/tailwindcss-language-service/src/completionProvider.ts
@@ -614,7 +614,7 @@   })
 
   const match = text
     .substr(0, text.length - 1) // don't include that extra character from earlier
-    .match(/\b(?<helper>config|theme)\(\s*['"]?(?<path>[^)'"]*)$/)
+    .match(/[\s:;/*(){}](?<helper>config|theme)\(\s*['"]?(?<path>[^)'"]*)$/)
 
   if (match === null) {
     return null

diff --git a/packages/tailwindcss-language-service/src/util/find.ts b/packages/tailwindcss-language-service/src/util/find.ts
index 028386507fd40a52de8f31403401970ed5c6d8d8..1977ef89a20f15fb0a736b7aae346804e1048b42 100644
--- a/packages/tailwindcss-language-service/src/util/find.ts
+++ b/packages/tailwindcss-language-service/src/util/find.ts
@@ -351,7 +351,11 @@   range?: Range
 ): DocumentHelperFunction[] {
   const text = getTextWithoutComments(doc, 'css', range)
 import { DocumentClassName, DocumentClassList, State, DocumentHelperFunction } from './state'
+import { dedupeByRange, flatten } from './array'
 import { isCssContext, isCssDoc } from './css'
+    /(?<prefix>[\s:;/*(){}])(?<helper>config|theme)(?<innerPrefix>\(\s*)(?<path>[^)]*?)\s*\)/g,
+    text
+  )
 
   return matches.map((match) => {
     let quotesBefore = ''
@@ -365,7 +370,11 @@     }
     path = path.replace(/['"]*\s*$/, '')
 
 import { DocumentClassName, DocumentClassList, State, DocumentHelperFunction } from './state'
-import { isHtmlContext } from './html'
+      important: Boolean(match.groups.important),
+      match.index +
+      match.groups.prefix.length +
+      match.groups.helper.length +
+  classList,
 
     return {
       helper: match.groups.helper === 'theme' ? 'theme' : 'config',