diff --git a/autoload/jsdoc.vim b/autoload/jsdoc.vim
index 494a2a0..8aafbe2 100644
--- a/autoload/jsdoc.vim
+++ b/autoload/jsdoc.vim
@@ -18,8 +18,8 @@ if !exists('g:jsdoc_additional_descriptions')
 endif
 
 function! jsdoc#insert()
-  let l:jsDocregex = '\s*\([a-zA-Z]*\)\s*[:=]\s*function\s*(\s*\(.*\)\s*).*'
-  let l:jsDocregex2 = '\s*function \([a-zA-Z]*\)\s*(\s*\(.*\)\s*).*'
+  let l:jsDocregex = '^.\{-}\s*\([a-zA-Z_$][a-zA-Z0-9_$]*\)\s*[:=]\s*function\s*(\s*\([^)]*\)\s*).*$'
+  let l:jsDocregex2 = '^.\{-}\s*function\s\+\([a-zA-Z_$][a-zA-Z0-9_$]*\)\s*(\s*\([^)]*\)\s*).*$'
 
   let l:line = getline('.')
   let l:indent = indent('.')