diff --git a/.gitignore b/.gitignore
index 80d9aa1f..2bb93859 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@ test/scanners
 bench/test.div.html
 diff.html
 etc/CodeRay.tmproj
+*.swp
diff --git a/lib/coderay/scanners/css.rb b/lib/coderay/scanners/css.rb
index 34eaecb6..7b731efc 100644
--- a/lib/coderay/scanners/css.rb
+++ b/lib/coderay/scanners/css.rb
@@ -144,7 +144,7 @@ def scan_tokens encoder, options
           encoder.end_group :string
           
         elsif match = scan(/#{RE::Function}/o)
-          encoder.begin_group :string
+          encoder.begin_group :function
           start = match[/^\w+\(/]
           encoder.text_token start, :delimiter
           if match[-1] == ?)
@@ -153,7 +153,7 @@ def scan_tokens encoder, options
           else
             encoder.text_token match[start.size..-1], :content
           end
-          encoder.end_group :string
+          encoder.end_group :function
           
         elsif match = scan(/(?: #{RE::Dimension} | #{RE::Percentage} | #{RE::Num} )/ox)
           encoder.text_token match, :float