diff --git a/src/compiletest/compiletest.rs b/src/compiletest/compiletest.rs
index 51bc9d71f88..6c6a78a360b 100644
--- a/src/compiletest/compiletest.rs
+++ b/src/compiletest/compiletest.rs
@@ -126,12 +126,6 @@ pub fn parse_config(args: Vec<String> ) -> Config {
         }
     }
 
-    let filter = if !matches.free.is_empty() {
-        Some(matches.free[0].clone())
-    } else {
-        None
-    };
-
     Config {
         compile_lib_path: make_absolute(opt_path(matches, "compile-lib-path")),
         run_lib_path: make_absolute(opt_path(matches, "run-lib-path")),