diff --git a/sass_completions.py b/sass_completions.py
index ad208547..15330a6f 100755
--- a/sass_completions.py
+++ b/sass_completions.py
@@ -634,7 +634,7 @@ def on_query_completions(self, view, prefix, locations):
                 self.re_name = re.compile(r":?([a-zA-Z-]+)\s*:?[^:;{}]*$")
 
         if match_selector(view, pt, "meta.property-value.css meta.function-call"):
-            items = self.complete_function_argument(view, prefix, pt, is_scss)
+            items = self.complete_function_argument(view, prefix, pt)
         elif match_selector(view, pt, "meta.property-value.css"):
             items = self.complete_property_value(view, prefix, pt, is_scss)
         else: